Adding dw2pdf version 2023-11-25 (48253f1).

Signed-off-by: Daniel Baumann <daniel@debian.org>

plugins/55/dw2pdf/vendor/setasign/fpdi/src/FpdfTpl.php

@@ -0,0 +1,22 @@
+<?php
+/**
+ * This file is part of FPDI
+ *
+ * @package   setasign\Fpdi
+ * @copyright Copyright (c) 2020 Setasign GmbH & Co. KG (https://www.setasign.com)
+ * @license   http://opensource.org/licenses/mit-license The MIT License
+ */
+
+namespace setasign\Fpdi;
+
+/**
+ * Class FpdfTpl
+ *
+ * This class adds a templating feature to FPDF.
+ *
+ * @package setasign\Fpdi
+ */
+class FpdfTpl extends \FPDF
+{
+    use FpdfTplTrait;
+}

plugins/55/dw2pdf/vendor/setasign/fpdi/src/FpdfTplTrait.php

@@ -0,0 +1,466 @@
+<?php
+/**
+ * This file is part of FPDI
+ *
+ * @package   setasign\Fpdi
+ * @copyright Copyright (c) 2020 Setasign GmbH & Co. KG (https://www.setasign.com)
+ * @license   http://opensource.org/licenses/mit-license The MIT License
+ */
+
+namespace setasign\Fpdi;
+
+/**
+ * Trait FpdfTplTrait
+ *
+ * This class adds a templating feature to tFPDF.
+ *
+ * @package setasign\Fpdi
+ */
+trait FpdfTplTrait
+{
+    /**
+     * Data of all created templates.
+     *
+     * @var array
+     */
+    protected $templates = [];
+
+    /**
+     * The template id for the currently created template.
+     *
+     * @var null|int
+     */
+    protected $currentTemplateId;
+
+    /**
+     * A counter for template ids.
+     *
+     * @var int
+     */
+    protected $templateId = 0;
+
+    /**
+     * Set the page format of the current page.
+     *
+     * @param array $size An array with two values defining the size.
+     * @param string $orientation "L" for landscape, "P" for portrait.
+     * @throws \BadMethodCallException
+     */
+    public function setPageFormat($size, $orientation)
+    {
+        if ($this->currentTemplateId !== null) {
+            throw new \BadMethodCallException('The page format cannot be changed when writing to a template.');
+        }
+
+        if (!\in_array($orientation, ['P', 'L'], true)) {
+            throw new \InvalidArgumentException(\sprintf(
+                'Invalid page orientation "%s"! Only "P" and "L" are allowed!',
+                $orientation
+            ));
+        }
+
+        $size = $this->_getpagesize($size);
+
+        if ($orientation != $this->CurOrientation
+            || $size[0] != $this->CurPageSize[0]
+            || $size[1] != $this->CurPageSize[1]
+        ) {
+            // New size or orientation
+            if ($orientation === 'P') {
+                $this->w = $size[0];
+                $this->h = $size[1];
+            } else {
+                $this->w = $size[1];
+                $this->h = $size[0];
+            }
+            $this->wPt = $this->w * $this->k;
+            $this->hPt = $this->h * $this->k;
+            $this->PageBreakTrigger = $this->h - $this->bMargin;
+            $this->CurOrientation = $orientation;
+            $this->CurPageSize = $size;
+
+            $this->PageInfo[$this->page]['size'] = array($this->wPt, $this->hPt);
+        }
+    }
+
+    /**
+     * Draws a template onto the page or another template.
+     *
+     * Give only one of the size parameters (width, height) to calculate the other one automatically in view to the
+     * aspect ratio.
+     *
+     * @param mixed $tpl The template id
+     * @param array|float|int $x The abscissa of upper-left corner. Alternatively you could use an assoc array
+     *                           with the keys "x", "y", "width", "height", "adjustPageSize".
+     * @param float|int $y The ordinate of upper-left corner.
+     * @param float|int|null $width The width.
+     * @param float|int|null $height The height.
+     * @param bool $adjustPageSize
+     * @return array The size
+     * @see FpdfTplTrait::getTemplateSize()
+     */
+    public function useTemplate($tpl, $x = 0, $y = 0, $width = null, $height = null, $adjustPageSize = false)
+    {
+        if (!isset($this->templates[$tpl])) {
+            throw new \InvalidArgumentException('Template does not exist!');
+        }
+
+        if (\is_array($x)) {
+            unset($x['tpl']);
+            \extract($x, EXTR_IF_EXISTS);
+            /** @noinspection NotOptimalIfConditionsInspection */
+            /** @noinspection CallableParameterUseCaseInTypeContextInspection */
+            if (\is_array($x)) {
+                $x = 0;
+            }
+        }
+
+        $template = $this->templates[$tpl];
+
+        $originalSize = $this->getTemplateSize($tpl);
+        $newSize = $this->getTemplateSize($tpl, $width, $height);
+        if ($adjustPageSize) {
+            $this->setPageFormat($newSize, $newSize['orientation']);
+        }
+
+        $this->_out(
+        // reset standard values, translate and scale
+            \sprintf(
+                'q 0 J 1 w 0 j 0 G 0 g %.4F 0 0 %.4F %.4F %.4F cm /%s Do Q',
+                ($newSize['width'] / $originalSize['width']),
+                ($newSize['height'] / $originalSize['height']),
+                $x * $this->k,
+                ($this->h - $y - $newSize['height']) * $this->k,
+                $template['id']
+            )
+        );
+
+        return $newSize;
+    }
+
+    /**
+     * Get the size of a template.
+     *
+     * Give only one of the size parameters (width, height) to calculate the other one automatically in view to the
+     * aspect ratio.
+     *
+     * @param mixed $tpl The template id
+     * @param float|int|null $width The width.
+     * @param float|int|null $height The height.
+     * @return array|bool An array with following keys: width, height, 0 (=width), 1 (=height), orientation (L or P)
+     */
+    public function getTemplateSize($tpl, $width = null, $height = null)
+    {
+        if (!isset($this->templates[$tpl])) {
+            return false;
+        }
+
+        if ($width === null && $height === null) {
+            $width = $this->templates[$tpl]['width'];
+            $height = $this->templates[$tpl]['height'];
+        } elseif ($width === null) {
+            $width = $height * $this->templates[$tpl]['width'] / $this->templates[$tpl]['height'];
+        }
+
+        if ($height === null) {
+            $height = $width * $this->templates[$tpl]['height'] / $this->templates[$tpl]['width'];
+        }
+
+        if ($height <= 0. || $width <= 0.) {
+            throw new \InvalidArgumentException('Width or height parameter needs to be larger than zero.');
+        }
+
+        return [
+            'width' => $width,
+            'height' => $height,
+            0 => $width,
+            1 => $height,
+            'orientation' => $width > $height ? 'L' : 'P'
+        ];
+    }
+
+    /**
+     * Begins a new template.
+     *
+     * @param float|int|null $width The width of the template. If null, the current page width is used.
+     * @param float|int|null $height The height of the template. If null, the current page height is used.
+     * @param bool $groupXObject Define the form XObject as a group XObject to support transparency (if used).
+     * @return int A template identifier.
+     */
+    public function beginTemplate($width = null, $height = null, $groupXObject = false)
+    {
+        if ($width === null) {
+            $width = $this->w;
+        }
+
+        if ($height === null) {
+            $height = $this->h;
+        }
+
+        $templateId = $this->getNextTemplateId();
+
+        // initiate buffer with current state of FPDF
+        $buffer = "2 J\n"
+            . \sprintf('%.2F w', $this->LineWidth * $this->k) . "\n";
+
+        if ($this->FontFamily) {
+            $buffer .= \sprintf("BT /F%d %.2F Tf ET\n", $this->CurrentFont['i'], $this->FontSizePt);
+        }
+
+        if ($this->DrawColor !== '0 G') {
+            $buffer .= $this->DrawColor . "\n";
+        }
+        if ($this->FillColor !== '0 g') {
+            $buffer .= $this->FillColor . "\n";
+        }
+
+        if ($groupXObject && \version_compare('1.4', $this->PDFVersion, '>')) {
+            $this->PDFVersion = '1.4';
+        }
+
+        $this->templates[$templateId] = [
+            'objectNumber' => null,
+            'id' => 'TPL' . $templateId,
+            'buffer' => $buffer,
+            'width' => $width,
+            'height' => $height,
+            'groupXObject' => $groupXObject,
+            'state' => [
+                'x' => $this->x,
+                'y' => $this->y,
+                'AutoPageBreak' => $this->AutoPageBreak,
+                'bMargin' => $this->bMargin,
+                'tMargin' => $this->tMargin,
+                'lMargin' => $this->lMargin,
+                'rMargin' => $this->rMargin,
+                'h' => $this->h,
+                'w' => $this->w,
+                'FontFamily' => $this->FontFamily,
+                'FontStyle' => $this->FontStyle,
+                'FontSizePt' => $this->FontSizePt,
+                'FontSize' => $this->FontSize,
+                'underline' => $this->underline,
+                'TextColor' => $this->TextColor,
+                'DrawColor' => $this->DrawColor,
+                'FillColor' => $this->FillColor,
+                'ColorFlag' => $this->ColorFlag
+            ]
+        ];
+
+        $this->SetAutoPageBreak(false);
+        $this->currentTemplateId = $templateId;
+
+        $this->h = $height;
+        $this->w = $width;
+
+        $this->SetXY($this->lMargin, $this->tMargin);
+        $this->SetRightMargin($this->w - $width + $this->rMargin);
+
+        return $templateId;
+    }
+
+    /**
+     * Ends a template.
+     *
+     * @return bool|int|null A template identifier.
+     */
+    public function endTemplate()
+    {
+        if (null === $this->currentTemplateId) {
+            return false;
+        }
+
+        $templateId = $this->currentTemplateId;
+        $template = $this->templates[$templateId];
+
+        $state = $template['state'];
+        $this->SetXY($state['x'], $state['y']);
+        $this->tMargin = $state['tMargin'];
+        $this->lMargin = $state['lMargin'];
+        $this->rMargin = $state['rMargin'];
+        $this->h = $state['h'];
+        $this->w = $state['w'];
+        $this->SetAutoPageBreak($state['AutoPageBreak'], $state['bMargin']);
+
+        $this->FontFamily = $state['FontFamily'];
+        $this->FontStyle = $state['FontStyle'];
+        $this->FontSizePt = $state['FontSizePt'];
+        $this->FontSize = $state['FontSize'];
+
+        $this->TextColor = $state['TextColor'];
+        $this->DrawColor = $state['DrawColor'];
+        $this->FillColor = $state['FillColor'];
+        $this->ColorFlag = $state['ColorFlag'];
+
+        $this->underline = $state['underline'];
+
+        $fontKey = $this->FontFamily . $this->FontStyle;
+        if ($fontKey) {
+            $this->CurrentFont =& $this->fonts[$fontKey];
+        } else {
+            unset($this->CurrentFont);
+        }
+
+        $this->currentTemplateId = null;
+
+        return $templateId;
+    }
+
+    /**
+     * Get the next template id.
+     *
+     * @return int
+     */
+    protected function getNextTemplateId()
+    {
+        return $this->templateId++;
+    }
+
+    /* overwritten FPDF methods: */
+
+    /**
+     * @inheritdoc
+     */
+    public function AddPage($orientation = '', $size = '', $rotation = 0)
+    {
+        if ($this->currentTemplateId !== null) {
+            throw new \BadMethodCallException('Pages cannot be added when writing to a template.');
+        }
+        parent::AddPage($orientation, $size, $rotation);
+    }
+
+    /**
+     * @inheritdoc
+     */
+    public function Link($x, $y, $w, $h, $link)
+    {
+        if ($this->currentTemplateId !== null) {
+            throw new \BadMethodCallException('Links cannot be set when writing to a template.');
+        }
+        parent::Link($x, $y, $w, $h, $link);
+    }
+
+    /**
+     * @inheritdoc
+     */
+    public function SetLink($link, $y = 0, $page = -1)
+    {
+        if ($this->currentTemplateId !== null) {
+            throw new \BadMethodCallException('Links cannot be set when writing to a template.');
+        }
+        return parent::SetLink($link, $y, $page);
+    }
+
+    /**
+     * @inheritdoc
+     */
+    public function SetDrawColor($r, $g = null, $b = null)
+    {
+        parent::SetDrawColor($r, $g, $b);
+        if ($this->page === 0 && $this->currentTemplateId !== null) {
+            $this->_out($this->DrawColor);
+        }
+    }
+
+    /**
+     * @inheritdoc
+     */
+    public function SetFillColor($r, $g = null, $b = null)
+    {
+        parent::SetFillColor($r, $g, $b);
+        if ($this->page === 0 && $this->currentTemplateId !== null) {
+            $this->_out($this->FillColor);
+        }
+    }
+
+    /**
+     * @inheritdoc
+     */
+    public function SetLineWidth($width)
+    {
+        parent::SetLineWidth($width);
+        if ($this->page === 0 && $this->currentTemplateId !== null) {
+            $this->_out(\sprintf('%.2F w', $width * $this->k));
+        }
+    }
+
+    /**
+     * @inheritdoc
+     */
+    public function SetFont($family, $style = '', $size = 0)
+    {
+        parent::SetFont($family, $style, $size);
+        if ($this->page === 0 && $this->currentTemplateId !== null) {
+            $this->_out(\sprintf('BT /F%d %.2F Tf ET', $this->CurrentFont['i'], $this->FontSizePt));
+        }
+    }
+
+    /**
+     * @inheritdoc
+     */
+    public function SetFontSize($size)
+    {
+        parent::SetFontSize($size);
+        if ($this->page === 0 && $this->currentTemplateId !== null) {
+            $this->_out(sprintf('BT /F%d %.2F Tf ET', $this->CurrentFont['i'], $this->FontSizePt));
+        }
+    }
+
+    /**
+     * @inheritdoc
+     */
+    protected function _putimages()
+    {
+        parent::_putimages();
+
+        foreach ($this->templates as $key => $template) {
+            $this->_newobj();
+            $this->templates[$key]['objectNumber'] = $this->n;
+
+            $this->_put('<</Type /XObject /Subtype /Form /FormType 1');
+            $this->_put(\sprintf('/BBox[0 0 %.2F %.2F]', $template['width'] * $this->k, $template['height'] * $this->k));
+            $this->_put('/Resources 2 0 R'); // default resources dictionary of FPDF
+
+            if ($this->compress) {
+                $buffer = \gzcompress($template['buffer']);
+                $this->_put('/Filter/FlateDecode');
+            } else {
+                $buffer = $template['buffer'];
+            }
+
+            $this->_put('/Length ' . \strlen($buffer));
+
+            if ($template['groupXObject']) {
+                $this->_put('/Group <</Type/Group/S/Transparency>>');
+            }
+
+            $this->_put('>>');
+            $this->_putstream($buffer);
+            $this->_put('endobj');
+        }
+    }
+
+    /**
+     * @inheritdoc
+     */
+    protected function _putxobjectdict()
+    {
+        foreach ($this->templates as $key => $template) {
+            $this->_put('/' . $template['id'] . ' ' . $template['objectNumber'] . ' 0 R');
+        }
+
+        parent::_putxobjectdict();
+    }
+
+    /**
+     * @inheritdoc
+     */
+    public function _out($s)
+    {
+        if ($this->currentTemplateId !== null) {
+            $this->templates[$this->currentTemplateId]['buffer'] .= $s . "\n";
+        } else {
+            parent::_out($s);
+        }
+    }
+}

plugins/55/dw2pdf/vendor/setasign/fpdi/src/Fpdi.php

@@ -0,0 +1,155 @@
+<?php
+/**
+ * This file is part of FPDI
+ *
+ * @package   setasign\Fpdi
+ * @copyright Copyright (c) 2020 Setasign GmbH & Co. KG (https://www.setasign.com)
+ * @license   http://opensource.org/licenses/mit-license The MIT License
+ */
+
+namespace setasign\Fpdi;
+
+use setasign\Fpdi\PdfParser\CrossReference\CrossReferenceException;
+use setasign\Fpdi\PdfParser\PdfParserException;
+use setasign\Fpdi\PdfParser\Type\PdfIndirectObject;
+use setasign\Fpdi\PdfParser\Type\PdfNull;
+
+/**
+ * Class Fpdi
+ *
+ * This class let you import pages of existing PDF documents into a reusable structure for FPDF.
+ *
+ * @package setasign\Fpdi
+ */
+class Fpdi extends FpdfTpl
+{
+    use FpdiTrait;
+
+    /**
+     * FPDI version
+     *
+     * @string
+     */
+    const VERSION = '2.3.1';
+
+    protected function _enddoc()
+    {
+        parent::_enddoc();
+        $this->cleanUp();
+    }
+
+    /**
+     * Draws an imported page or a template onto the page or another template.
+     *
+     * Give only one of the size parameters (width, height) to calculate the other one automatically in view to the
+     * aspect ratio.
+     *
+     * @param mixed $tpl The template id
+     * @param float|int|array $x The abscissa of upper-left corner. Alternatively you could use an assoc array
+     *                           with the keys "x", "y", "width", "height", "adjustPageSize".
+     * @param float|int $y The ordinate of upper-left corner.
+     * @param float|int|null $width The width.
+     * @param float|int|null $height The height.
+     * @param bool $adjustPageSize
+     * @return array The size
+     * @see Fpdi::getTemplateSize()
+     */
+    public function useTemplate($tpl, $x = 0, $y = 0, $width = null, $height = null, $adjustPageSize = false)
+    {
+        if (isset($this->importedPages[$tpl])) {
+            $size = $this->useImportedPage($tpl, $x, $y, $width, $height, $adjustPageSize);
+            if ($this->currentTemplateId !== null) {
+                $this->templates[$this->currentTemplateId]['resources']['templates']['importedPages'][$tpl] = $tpl;
+            }
+            return $size;
+        }
+
+        return parent::useTemplate($tpl, $x, $y, $width, $height, $adjustPageSize);
+    }
+
+    /**
+     * Get the size of an imported page or template.
+     *
+     * Give only one of the size parameters (width, height) to calculate the other one automatically in view to the
+     * aspect ratio.
+     *
+     * @param mixed $tpl The template id
+     * @param float|int|null $width The width.
+     * @param float|int|null $height The height.
+     * @return array|bool An array with following keys: width, height, 0 (=width), 1 (=height), orientation (L or P)
+     */
+    public function getTemplateSize($tpl, $width = null, $height = null)
+    {
+        $size = parent::getTemplateSize($tpl, $width, $height);
+        if ($size === false) {
+            return $this->getImportedPageSize($tpl, $width, $height);
+        }
+
+        return $size;
+    }
+
+    /**
+     * @inheritdoc
+     * @throws CrossReferenceException
+     * @throws PdfParserException
+     */
+    protected function _putimages()
+    {
+        $this->currentReaderId = null;
+        parent::_putimages();
+
+        foreach ($this->importedPages as $key => $pageData) {
+            $this->_newobj();
+            $this->importedPages[$key]['objectNumber'] = $this->n;
+            $this->currentReaderId = $pageData['readerId'];
+            $this->writePdfType($pageData['stream']);
+            $this->_put('endobj');
+        }
+
+        foreach (\array_keys($this->readers) as $readerId) {
+            $parser = $this->getPdfReader($readerId)->getParser();
+            $this->currentReaderId = $readerId;
+
+            while (($objectNumber = \array_pop($this->objectsToCopy[$readerId])) !== null) {
+                try {
+                    $object = $parser->getIndirectObject($objectNumber);
+
+                } catch (CrossReferenceException $e) {
+                    if ($e->getCode() === CrossReferenceException::OBJECT_NOT_FOUND) {
+                        $object = PdfIndirectObject::create($objectNumber, 0, new PdfNull());
+                    } else {
+                        throw $e;
+                    }
+                }
+
+                $this->writePdfType($object);
+            }
+        }
+
+        $this->currentReaderId = null;
+    }
+
+    /**
+     * @inheritdoc
+     */
+    protected function _putxobjectdict()
+    {
+        foreach ($this->importedPages as $key => $pageData) {
+            $this->_put('/' . $pageData['id'] . ' ' . $pageData['objectNumber'] . ' 0 R');
+        }
+
+        parent::_putxobjectdict();
+    }
+
+    /**
+     * @inheritdoc
+     */
+    protected function _put($s, $newLine = true)
+    {
+        if ($newLine) {
+            $this->buffer .= $s . "\n";
+        } else {
+            $this->buffer .= $s;
+        }
+    }
+}

plugins/55/dw2pdf/vendor/setasign/fpdi/src/FpdiException.php

@@ -0,0 +1,19 @@
+<?php
+/**
+ * This file is part of FPDI
+ *
+ * @package   setasign\Fpdi
+ * @copyright Copyright (c) 2020 Setasign GmbH & Co. KG (https://www.setasign.com)
+ * @license   http://opensource.org/licenses/mit-license The MIT License
+ */
+
+namespace setasign\Fpdi;
+
+/**
+ * Base exception class for the FPDI package.
+ *
+ * @package setasign\Fpdi
+ */
+class FpdiException extends \Exception
+{
+}

plugins/55/dw2pdf/vendor/setasign/fpdi/src/FpdiTrait.php

@@ -0,0 +1,562 @@
+<?php
+/**
+ * This file is part of FPDI
+ *
+ * @package   setasign\Fpdi
+ * @copyright Copyright (c) 2020 Setasign GmbH & Co. KG (https://www.setasign.com)
+ * @license   http://opensource.org/licenses/mit-license The MIT License
+ */
+
+namespace setasign\Fpdi;
+
+use setasign\Fpdi\PdfParser\CrossReference\CrossReferenceException;
+use setasign\Fpdi\PdfParser\Filter\FilterException;
+use setasign\Fpdi\PdfParser\PdfParser;
+use setasign\Fpdi\PdfParser\PdfParserException;
+use setasign\Fpdi\PdfParser\StreamReader;
+use setasign\Fpdi\PdfParser\Type\PdfArray;
+use setasign\Fpdi\PdfParser\Type\PdfBoolean;
+use setasign\Fpdi\PdfParser\Type\PdfDictionary;
+use setasign\Fpdi\PdfParser\Type\PdfHexString;
+use setasign\Fpdi\PdfParser\Type\PdfIndirectObject;
+use setasign\Fpdi\PdfParser\Type\PdfIndirectObjectReference;
+use setasign\Fpdi\PdfParser\Type\PdfName;
+use setasign\Fpdi\PdfParser\Type\PdfNull;
+use setasign\Fpdi\PdfParser\Type\PdfNumeric;
+use setasign\Fpdi\PdfParser\Type\PdfStream;
+use setasign\Fpdi\PdfParser\Type\PdfString;
+use setasign\Fpdi\PdfParser\Type\PdfToken;
+use setasign\Fpdi\PdfParser\Type\PdfType;
+use setasign\Fpdi\PdfParser\Type\PdfTypeException;
+use setasign\Fpdi\PdfReader\PageBoundaries;
+use setasign\Fpdi\PdfReader\PdfReader;
+use setasign\Fpdi\PdfReader\PdfReaderException;
+use /* This namespace/class is used by the commercial FPDI PDF-Parser add-on. */
+    /** @noinspection PhpUndefinedClassInspection */
+    /** @noinspection PhpUndefinedNamespaceInspection */
+    setasign\FpdiPdfParser\PdfParser\PdfParser as FpdiPdfParser;
+
+/**
+ * The FpdiTrait
+ *
+ * This trait offers the core functionalities of FPDI. By passing them to a trait we can reuse it with e.g. TCPDF in a
+ * very easy way.
+ *
+ * @package setasign\Fpdi
+ */
+trait FpdiTrait
+{
+    /**
+     * The pdf reader instances.
+     *
+     * @var PdfReader[]
+     */
+    protected $readers = [];
+
+    /**
+     * Instances created internally.
+     *
+     * @var array
+     */
+    protected $createdReaders = [];
+
+    /**
+     * The current reader id.
+     *
+     * @var string
+     */
+    protected $currentReaderId;
+
+    /**
+     * Data of all imported pages.
+     *
+     * @var array
+     */
+    protected $importedPages = [];
+
+    /**
+     * A map from object numbers of imported objects to new assigned object numbers by FPDF.
+     *
+     * @var array
+     */
+    protected $objectMap = [];
+
+    /**
+     * An array with information about objects, which needs to be copied to the resulting document.
+     *
+     * @var array
+     */
+    protected $objectsToCopy = [];
+
+    /**
+     * Release resources and file handles.
+     *
+     * This method is called internally when the document is created successfully. By default it only cleans up
+     * stream reader instances which were created internally.
+     *
+     * @param bool $allReaders
+     */
+    public function cleanUp($allReaders = false)
+    {
+        $readers = $allReaders ? array_keys($this->readers) : $this->createdReaders;
+        foreach ($readers as $id) {
+            $this->readers[$id]->getParser()->getStreamReader()->cleanUp();
+            unset($this->readers[$id]);
+        }
+
+        $this->createdReaders= [];
+    }
+
+    /**
+     * Set the minimal PDF version.
+     *
+     * @param string $pdfVersion
+     */
+    protected function setMinPdfVersion($pdfVersion)
+    {
+        if (\version_compare($pdfVersion, $this->PDFVersion, '>')) {
+            $this->PDFVersion = $pdfVersion;
+        }
+    }
+
+    /** @noinspection PhpUndefinedClassInspection */
+    /**
+     * Get a new pdf parser instance.
+     *
+     * @param StreamReader $streamReader
+     * @return PdfParser|FpdiPdfParser
+     */
+    protected function getPdfParserInstance(StreamReader $streamReader)
+    {
+        /** @noinspection PhpUndefinedClassInspection */
+        if (\class_exists(FpdiPdfParser::class)) {
+            /** @noinspection PhpUndefinedClassInspection */
+            return new FpdiPdfParser($streamReader);
+        }
+
+        return new PdfParser($streamReader);
+    }
+
+    /**
+     * Get an unique reader id by the $file parameter.
+     *
+     * @param string|resource|PdfReader|StreamReader $file An open file descriptor, a path to a file, a PdfReader
+     *                                                     instance or a StreamReader instance.
+     * @return string
+     */
+    protected function getPdfReaderId($file)
+    {
+        if (\is_resource($file)) {
+            $id = (string) $file;
+        } elseif (\is_string($file)) {
+            $id = \realpath($file);
+            if ($id === false) {
+                $id = $file;
+            }
+        } elseif (\is_object($file)) {
+            $id = \spl_object_hash($file);
+        } else {
+            throw new \InvalidArgumentException(
+                \sprintf('Invalid type in $file parameter (%s)', \gettype($file))
+            );
+        }
+
+        /** @noinspection OffsetOperationsInspection */
+        if (isset($this->readers[$id])) {
+            return $id;
+        }
+
+        if (\is_resource($file)) {
+            $streamReader = new StreamReader($file);
+        } elseif (\is_string($file)) {
+            $streamReader = StreamReader::createByFile($file);
+            $this->createdReaders[] = $id;
+        } else {
+            $streamReader = $file;
+        }
+
+        $reader = new PdfReader($this->getPdfParserInstance($streamReader));
+        /** @noinspection OffsetOperationsInspection */
+        $this->readers[$id] = $reader;
+
+        return $id;
+    }
+
+    /**
+     * Get a pdf reader instance by its id.
+     *
+     * @param string $id
+     * @return PdfReader
+     */
+    protected function getPdfReader($id)
+    {
+        if (isset($this->readers[$id])) {
+            return $this->readers[$id];
+        }
+
+        throw new \InvalidArgumentException(
+            \sprintf('No pdf reader with the given id (%s) exists.', $id)
+        );
+    }
+
+    /**
+     * Set the source PDF file.
+     *
+     * @param string|resource|StreamReader $file Path to the file or a stream resource or a StreamReader instance.
+     * @return int The page count of the PDF document.
+     * @throws PdfParserException
+     */
+    public function setSourceFile($file)
+    {
+        $this->currentReaderId = $this->getPdfReaderId($file);
+        $this->objectsToCopy[$this->currentReaderId] = [];
+
+        $reader = $this->getPdfReader($this->currentReaderId);
+        $this->setMinPdfVersion($reader->getPdfVersion());
+
+        return $reader->getPageCount();
+    }
+
+    /**
+     * Imports a page.
+     *
+     * @param int $pageNumber The page number.
+     * @param string $box The page boundary to import. Default set to PageBoundaries::CROP_BOX.
+     * @param bool $groupXObject Define the form XObject as a group XObject to support transparency (if used).
+     * @return string A unique string identifying the imported page.
+     * @throws CrossReferenceException
+     * @throws FilterException
+     * @throws PdfParserException
+     * @throws PdfTypeException
+     * @throws PdfReaderException
+     * @see PageBoundaries
+     */
+    public function importPage($pageNumber, $box = PageBoundaries::CROP_BOX, $groupXObject = true)
+    {
+        if (null === $this->currentReaderId) {
+            throw new \BadMethodCallException('No reader initiated. Call setSourceFile() first.');
+        }
+
+        $pageId = $this->currentReaderId;
+
+        $pageNumber = (int)$pageNumber;
+        $pageId .= '|' . $pageNumber . '|' . ($groupXObject ? '1' : '0');
+
+        // for backwards compatibility with FPDI 1
+        $box = \ltrim($box, '/');
+        if (!PageBoundaries::isValidName($box)) {
+            throw new \InvalidArgumentException(
+                \sprintf('Box name is invalid: "%s"', $box)
+            );
+        }
+
+        $pageId .= '|' . $box;
+
+        if (isset($this->importedPages[$pageId])) {
+            return $pageId;
+        }
+
+        $reader = $this->getPdfReader($this->currentReaderId);
+        $page = $reader->getPage($pageNumber);
+
+        $bbox = $page->getBoundary($box);
+        if ($bbox === false) {
+            throw new PdfReaderException(
+                \sprintf("Page doesn't have a boundary box (%s).", $box),
+                PdfReaderException::MISSING_DATA
+            );
+        }
+
+        $dict = new PdfDictionary();
+        $dict->value['Type'] = PdfName::create('XObject');
+        $dict->value['Subtype'] = PdfName::create('Form');
+        $dict->value['FormType'] = PdfNumeric::create(1);
+        $dict->value['BBox'] = $bbox->toPdfArray();
+
+        if ($groupXObject) {
+            $this->setMinPdfVersion('1.4');
+            $dict->value['Group'] = PdfDictionary::create([
+                'Type' => PdfName::create('Group'),
+                'S' => PdfName::create('Transparency')
+            ]);
+        }
+
+        $resources = $page->getAttribute('Resources');
+        if ($resources !== null) {
+            $dict->value['Resources'] = $resources;
+        }
+
+        list($width, $height) = $page->getWidthAndHeight($box);
+
+        $a = 1;
+        $b = 0;
+        $c = 0;
+        $d = 1;
+        $e = -$bbox->getLlx();
+        $f = -$bbox->getLly();
+
+        $rotation = $page->getRotation();
+
+        if ($rotation !== 0) {
+            $rotation *= -1;
+            $angle = $rotation * M_PI/180;
+            $a = \cos($angle);
+            $b = \sin($angle);
+            $c = -$b;
+            $d = $a;
+
+            switch ($rotation) {
+                case -90:
+                    $e = -$bbox->getLly();
+                    $f = $bbox->getUrx();
+                    break;
+                case -180:
+                    $e = $bbox->getUrx();
+                    $f = $bbox->getUry();
+                    break;
+                case -270:
+                    $e = $bbox->getUry();
+                    $f = -$bbox->getLlx();
+                    break;
+            }
+        }
+
+        // we need to rotate/translate
+        if ($a != 1 || $b != 0 || $c != 0 || $d != 1 || $e != 0 || $f != 0) {
+            $dict->value['Matrix'] = PdfArray::create([
+                PdfNumeric::create($a), PdfNumeric::create($b), PdfNumeric::create($c),
+                PdfNumeric::create($d), PdfNumeric::create($e), PdfNumeric::create($f)
+            ]);
+        }
+
+        // try to use the existing content stream
+        $pageDict = $page->getPageDictionary();
+
+        $contentsObject = PdfType::resolve(PdfDictionary::get($pageDict, 'Contents'), $reader->getParser(), true);
+        $contents =  PdfType::resolve($contentsObject, $reader->getParser());
+
+        // just copy the stream reference if it is only a single stream
+        if (($contentsIsStream = ($contents instanceof PdfStream))
+            || ($contents instanceof PdfArray && \count($contents->value) === 1)
+        ) {
+            if ($contentsIsStream) {
+                /**
+                 * @var PdfIndirectObject $contentsObject
+                 */
+                $stream = $contents;
+            } else {
+                $stream = PdfType::resolve($contents->value[0], $reader->getParser());
+            }
+
+            $filter = PdfDictionary::get($stream->value, 'Filter');
+            if (!$filter instanceof PdfNull) {
+                $dict->value['Filter'] = $filter;
+            }
+            $length = PdfType::resolve(PdfDictionary::get($stream->value, 'Length'), $reader->getParser());
+            $dict->value['Length'] = $length;
+            $stream->value = $dict;
+
+        // otherwise extract it from the array and re-compress the whole stream
+        } else {
+            $streamContent = $this->compress
+                ? \gzcompress($page->getContentStream())
+                : $page->getContentStream();
+
+            $dict->value['Length'] = PdfNumeric::create(\strlen($streamContent));
+            if ($this->compress) {
+                $dict->value['Filter'] = PdfName::create('FlateDecode');
+            }
+
+            $stream = PdfStream::create($dict, $streamContent);
+        }
+
+        $this->importedPages[$pageId] = [
+            'objectNumber' => null,
+            'readerId' => $this->currentReaderId,
+            'id' => 'TPL' . $this->getNextTemplateId(),
+            'width' => $width / $this->k,
+            'height' => $height / $this->k,
+            'stream' => $stream
+        ];
+
+        return $pageId;
+    }
+
+    /**
+     * Draws an imported page onto the page.
+     *
+     * Give only one of the size parameters (width, height) to calculate the other one automatically in view to the
+     * aspect ratio.
+     *
+     * @param mixed $pageId The page id
+     * @param float|int|array $x The abscissa of upper-left corner. Alternatively you could use an assoc array
+     *                           with the keys "x", "y", "width", "height", "adjustPageSize".
+     * @param float|int $y The ordinate of upper-left corner.
+     * @param float|int|null $width The width.
+     * @param float|int|null $height The height.
+     * @param bool $adjustPageSize
+     * @return array The size.
+     * @see Fpdi::getTemplateSize()
+     */
+    public function useImportedPage($pageId, $x = 0, $y = 0, $width = null, $height = null, $adjustPageSize = false)
+    {
+        if (\is_array($x)) {
+            /** @noinspection OffsetOperationsInspection */
+            unset($x['pageId']);
+            \extract($x, EXTR_IF_EXISTS);
+            /** @noinspection NotOptimalIfConditionsInspection */
+            if (\is_array($x)) {
+                $x = 0;
+            }
+        }
+
+        if (!isset($this->importedPages[$pageId])) {
+            throw new \InvalidArgumentException('Imported page does not exist!');
+        }
+
+        $importedPage = $this->importedPages[$pageId];
+
+        $originalSize = $this->getTemplateSize($pageId);
+        $newSize = $this->getTemplateSize($pageId, $width, $height);
+        if ($adjustPageSize) {
+            $this->setPageFormat($newSize, $newSize['orientation']);
+        }
+
+        $this->_out(
+            // reset standard values, translate and scale
+            \sprintf(
+                'q 0 J 1 w 0 j 0 G 0 g %.4F 0 0 %.4F %.4F %.4F cm /%s Do Q',
+                ($newSize['width'] / $originalSize['width']),
+                ($newSize['height'] / $originalSize['height']),
+                $x * $this->k,
+                ($this->h - $y - $newSize['height']) * $this->k,
+                $importedPage['id']
+            )
+        );
+
+        return $newSize;
+    }
+
+    /**
+     * Get the size of an imported page.
+     *
+     * Give only one of the size parameters (width, height) to calculate the other one automatically in view to the
+     * aspect ratio.
+     *
+     * @param mixed $tpl The template id
+     * @param float|int|null $width The width.
+     * @param float|int|null $height The height.
+     * @return array|bool An array with following keys: width, height, 0 (=width), 1 (=height), orientation (L or P)
+     */
+    public function getImportedPageSize($tpl, $width = null, $height = null)
+    {
+        if (isset($this->importedPages[$tpl])) {
+            $importedPage = $this->importedPages[$tpl];
+
+            if ($width === null && $height === null) {
+                $width = $importedPage['width'];
+                $height = $importedPage['height'];
+            } elseif ($width === null) {
+                $width = $height * $importedPage['width'] / $importedPage['height'];
+            }
+
+            if ($height  === null) {
+                $height = $width * $importedPage['height'] / $importedPage['width'];
+            }
+
+            if ($height <= 0. || $width <= 0.) {
+                throw new \InvalidArgumentException('Width or height parameter needs to be larger than zero.');
+            }
+
+            return [
+                'width' => $width,
+                'height' => $height,
+                0 => $width,
+                1 => $height,
+                'orientation' => $width > $height ? 'L' : 'P'
+            ];
+        }
+
+        return false;
+    }
+
+    /**
+     * Writes a PdfType object to the resulting buffer.
+     *
+     * @param PdfType $value
+     * @throws PdfTypeException
+     */
+    protected function writePdfType(PdfType $value)
+    {
+        if ($value instanceof PdfNumeric) {
+            if (\is_int($value->value)) {
+                $this->_put($value->value . ' ', false);
+            } else {
+                $this->_put(\rtrim(\rtrim(\sprintf('%.5F', $value->value), '0'), '.') . ' ', false);
+            }
+
+        } elseif ($value instanceof PdfName) {
+            $this->_put('/' . $value->value . ' ', false);
+
+        } elseif ($value instanceof PdfString) {
+            $this->_put('(' . $value->value . ')', false);
+
+        } elseif ($value instanceof PdfHexString) {
+            $this->_put('<' . $value->value . '>');
+
+        } elseif ($value instanceof PdfBoolean) {
+            $this->_put($value->value ? 'true ' : 'false ', false);
+
+        } elseif ($value instanceof PdfArray) {
+            $this->_put('[', false);
+            foreach ($value->value as $entry) {
+                $this->writePdfType($entry);
+            }
+            $this->_put(']');
+
+        } elseif ($value instanceof PdfDictionary) {
+            $this->_put('<<', false);
+            foreach ($value->value as $name => $entry) {
+                $this->_put('/' . $name . ' ', false);
+                $this->writePdfType($entry);
+            }
+            $this->_put('>>');
+
+        } elseif ($value instanceof PdfToken) {
+            $this->_put($value->value);
+
+        } elseif ($value instanceof PdfNull) {
+            $this->_put('null ');
+
+        } elseif ($value instanceof PdfStream) {
+            /**
+             * @var $value PdfStream
+             */
+            $this->writePdfType($value->value);
+            $this->_put('stream');
+            $this->_put($value->getStream());
+            $this->_put('endstream');
+
+        } elseif ($value instanceof PdfIndirectObjectReference) {
+            if (!isset($this->objectMap[$this->currentReaderId])) {
+                $this->objectMap[$this->currentReaderId] = [];
+            }
+
+            if (!isset($this->objectMap[$this->currentReaderId][$value->value])) {
+                $this->objectMap[$this->currentReaderId][$value->value] = ++$this->n;
+                $this->objectsToCopy[$this->currentReaderId][] = $value->value;
+            }
+
+            $this->_put($this->objectMap[$this->currentReaderId][$value->value] . ' 0 R ', false);
+
+        } elseif ($value instanceof PdfIndirectObject) {
+            /**
+             * @var $value PdfIndirectObject
+             */
+            $n = $this->objectMap[$this->currentReaderId][$value->objectNumber];
+            $this->_newobj($n);
+            $this->writePdfType($value->value);
+            $this->_put('endobj');
+        }
+    }
+}

plugins/55/dw2pdf/vendor/setasign/fpdi/src/PdfParser/CrossReference/AbstractReader.php

@@ -0,0 +1,96 @@
+<?php
+/**
+ * This file is part of FPDI
+ *
+ * @package   setasign\Fpdi
+ * @copyright Copyright (c) 2020 Setasign GmbH & Co. KG (https://www.setasign.com)
+ * @license   http://opensource.org/licenses/mit-license The MIT License
+ */
+
+namespace setasign\Fpdi\PdfParser\CrossReference;
+
+use setasign\Fpdi\PdfParser\PdfParser;
+use setasign\Fpdi\PdfParser\Type\PdfDictionary;
+use setasign\Fpdi\PdfParser\Type\PdfToken;
+use setasign\Fpdi\PdfParser\Type\PdfTypeException;
+
+/**
+ * Abstract class for cross-reference reader classes.
+ *
+ * @package setasign\Fpdi\PdfParser\CrossReference
+ */
+abstract class AbstractReader
+{
+    /**
+     * @var PdfParser
+     */
+    protected $parser;
+
+    /**
+     * @var PdfDictionary
+     */
+    protected $trailer;
+
+    /**
+     * AbstractReader constructor.
+     *
+     * @param PdfParser $parser
+     * @throws CrossReferenceException
+     * @throws PdfTypeException
+     */
+    public function __construct(PdfParser $parser)
+    {
+        $this->parser = $parser;
+        $this->readTrailer();
+    }
+
+    /**
+     * Get the trailer dictionary.
+     *
+     * @return PdfDictionary
+     */
+    public function getTrailer()
+    {
+        return $this->trailer;
+    }
+
+    /**
+     * Read the trailer dictionary.
+     *
+     * @throws CrossReferenceException
+     * @throws PdfTypeException
+     */
+    protected function readTrailer()
+    {
+        try {
+            $trailerKeyword = $this->parser->readValue(null, PdfToken::class);
+            if ($trailerKeyword->value !== 'trailer') {
+                throw new CrossReferenceException(
+                    \sprintf(
+                        'Unexpected end of cross reference. "trailer"-keyword expected, got: %s.',
+                        $trailerKeyword->value
+                    ),
+                    CrossReferenceException::UNEXPECTED_END
+                );
+            }
+        } catch (PdfTypeException $e) {
+            throw new CrossReferenceException(
+                'Unexpected end of cross reference. "trailer"-keyword expected, got an invalid object type.',
+                CrossReferenceException::UNEXPECTED_END,
+                $e
+            );
+        }
+
+        try {
+            $trailer = $this->parser->readValue(null, PdfDictionary::class);
+        } catch (PdfTypeException $e) {
+            throw new CrossReferenceException(
+                'Unexpected end of cross reference. Trailer not found.',
+                CrossReferenceException::UNEXPECTED_END,
+                $e
+            );
+        }
+
+        $this->trailer = $trailer;
+    }
+}

plugins/55/dw2pdf/vendor/setasign/fpdi/src/PdfParser/CrossReference/CrossReference.php

@@ -0,0 +1,328 @@
+<?php
+/**
+ * This file is part of FPDI
+ *
+ * @package   setasign\Fpdi
+ * @copyright Copyright (c) 2020 Setasign GmbH & Co. KG (https://www.setasign.com)
+ * @license   http://opensource.org/licenses/mit-license The MIT License
+ */
+
+namespace setasign\Fpdi\PdfParser\CrossReference;
+
+use setasign\Fpdi\PdfParser\PdfParser;
+use setasign\Fpdi\PdfParser\Type\PdfDictionary;
+use setasign\Fpdi\PdfParser\Type\PdfIndirectObject;
+use setasign\Fpdi\PdfParser\Type\PdfNumeric;
+use setasign\Fpdi\PdfParser\Type\PdfStream;
+use setasign\Fpdi\PdfParser\Type\PdfToken;
+use setasign\Fpdi\PdfParser\Type\PdfTypeException;
+
+/**
+ * Class CrossReference
+ *
+ * This class processes the standard cross reference of a PDF document.
+ *
+ * @package setasign\Fpdi\PdfParser\CrossReference
+ */
+class CrossReference
+{
+    /**
+     * The byte length in which the "startxref" keyword should be searched.
+     *
+     * @var int
+     */
+    static public $trailerSearchLength = 5500;
+
+    /**
+     * @var int
+     */
+    protected $fileHeaderOffset = 0;
+
+    /**
+     * @var PdfParser
+     */
+    protected $parser;
+
+    /**
+     * @var ReaderInterface[]
+     */
+    protected $readers = [];
+
+    /**
+     * CrossReference constructor.
+     *
+     * @param PdfParser $parser
+     * @throws CrossReferenceException
+     * @throws PdfTypeException
+     */
+    public function __construct(PdfParser $parser, $fileHeaderOffset = 0)
+    {
+        $this->parser = $parser;
+        $this->fileHeaderOffset = $fileHeaderOffset;
+
+        $offset = $this->findStartXref();
+        $reader = null;
+        /** @noinspection TypeUnsafeComparisonInspection */
+        while ($offset != false) { // By doing an unsafe comparsion we ignore faulty references to byte offset 0
+            try {
+                $reader = $this->readXref($offset + $this->fileHeaderOffset);
+            } catch (CrossReferenceException $e) {
+                // sometimes the file header offset is part of the byte offsets, so let's retry by resetting it to zero.
+                if ($e->getCode() === CrossReferenceException::INVALID_DATA && $this->fileHeaderOffset !== 0) {
+                    $this->fileHeaderOffset = 0;
+                    $reader = $this->readXref($offset + $this->fileHeaderOffset);
+                } else {
+                    throw $e;
+                }
+            }
+
+            $trailer = $reader->getTrailer();
+            $this->checkForEncryption($trailer);
+            $this->readers[] = $reader;
+
+            if (isset($trailer->value['Prev'])) {
+                $offset = $trailer->value['Prev']->value;
+            } else {
+                $offset = false;
+            }
+        }
+
+        // fix faulty sub-section header
+        if ($reader instanceof FixedReader) {
+            /**
+             * @var FixedReader $reader
+             */
+            $reader->fixFaultySubSectionShift();
+        }
+
+        if ($reader === null) {
+            throw new CrossReferenceException('No cross-reference found.', CrossReferenceException::NO_XREF_FOUND);
+        }
+    }
+
+    /**
+     * Get the size of the cross reference.
+     *
+     * @return integer
+     */
+    public function getSize()
+    {
+        return $this->getTrailer()->value['Size']->value;
+    }
+
+    /**
+     * Get the trailer dictionary.
+     *
+     * @return PdfDictionary
+     */
+    public function getTrailer()
+    {
+        return $this->readers[0]->getTrailer();
+    }
+
+    /**
+     * Get the cross reference readser instances.
+     *
+     * @return ReaderInterface[]
+     */
+    public function getReaders()
+    {
+        return $this->readers;
+    }
+
+    /**
+     * Get the offset by an object number.
+     *
+     * @param int $objectNumber
+     * @return integer|bool
+     */
+    public function getOffsetFor($objectNumber)
+    {
+        foreach ($this->getReaders() as $reader) {
+            $offset = $reader->getOffsetFor($objectNumber);
+            if ($offset !== false) {
+                return $offset;
+            }
+        }
+
+        return false;
+    }
+
+    /**
+     * Get an indirect object by its object number.
+     *
+     * @param int $objectNumber
+     * @return PdfIndirectObject
+     * @throws CrossReferenceException
+     */
+    public function getIndirectObject($objectNumber)
+    {
+        $offset = $this->getOffsetFor($objectNumber);
+        if ($offset === false) {
+            throw new CrossReferenceException(
+                \sprintf('Object (id:%s) not found.', $objectNumber),
+                CrossReferenceException::OBJECT_NOT_FOUND
+            );
+        }
+
+        $parser = $this->parser;
+
+        $parser->getTokenizer()->clearStack();
+        $parser->getStreamReader()->reset($offset + $this->fileHeaderOffset);
+
+        try {
+            /** @var PdfIndirectObject $object */
+            $object = $parser->readValue(null, PdfIndirectObject::class);
+        } catch (PdfTypeException $e) {
+            throw new CrossReferenceException(
+                \sprintf('Object (id:%s) not found at location (%s).', $objectNumber, $offset),
+                CrossReferenceException::OBJECT_NOT_FOUND,
+                $e
+            );
+        }
+
+        if ($object->objectNumber !== $objectNumber) {
+            throw new CrossReferenceException(
+                \sprintf('Wrong object found, got %s while %s was expected.', $object->objectNumber, $objectNumber),
+                CrossReferenceException::OBJECT_NOT_FOUND
+            );
+        }
+
+        return $object;
+    }
+
+    /**
+     * Read the cross-reference table at a given offset.
+     *
+     * Internally the method will try to evaluate the best reader for this cross-reference.
+     *
+     * @param int $offset
+     * @return ReaderInterface
+     * @throws CrossReferenceException
+     * @throws PdfTypeException
+     */
+    protected function readXref($offset)
+    {
+        $this->parser->getStreamReader()->reset($offset);
+        $this->parser->getTokenizer()->clearStack();
+        $initValue = $this->parser->readValue();
+        
+        return $this->initReaderInstance($initValue);
+    }
+
+    /**
+     * Get a cross-reference reader instance.
+     *
+     * @param PdfToken|PdfIndirectObject $initValue
+     * @return ReaderInterface|bool
+     * @throws CrossReferenceException
+     * @throws PdfTypeException
+     */
+    protected function initReaderInstance($initValue)
+    {
+        $position = $this->parser->getStreamReader()->getPosition()
+            + $this->parser->getStreamReader()->getOffset() + $this->fileHeaderOffset;
+
+        if ($initValue instanceof PdfToken && $initValue->value === 'xref') {
+            try {
+                return new FixedReader($this->parser);
+            } catch (CrossReferenceException $e) {
+                $this->parser->getStreamReader()->reset($position);
+                $this->parser->getTokenizer()->clearStack();
+
+                return new LineReader($this->parser);
+            }
+        }
+
+        if ($initValue instanceof PdfIndirectObject) {
+            try {
+                $stream = PdfStream::ensure($initValue->value);
+
+            } catch (PdfTypeException $e) {
+                throw new CrossReferenceException(
+                    'Invalid object type at xref reference offset.',
+                    CrossReferenceException::INVALID_DATA,
+                    $e
+                );
+            }
+
+            $type = PdfDictionary::get($stream->value, 'Type');
+            if ($type->value !== 'XRef') {
+                throw new CrossReferenceException(
+                    'The xref position points to an incorrect object type.',
+                    CrossReferenceException::INVALID_DATA
+                );
+            }
+
+            $this->checkForEncryption($stream->value);
+
+            throw new CrossReferenceException(
+                'This PDF document probably uses a compression technique which is not supported by the ' .
+                'free parser shipped with FPDI. (See https://www.setasign.com/fpdi-pdf-parser for more details)',
+                CrossReferenceException::COMPRESSED_XREF
+            );
+        }
+
+        throw new CrossReferenceException(
+            'The xref position points to an incorrect object type.',
+            CrossReferenceException::INVALID_DATA
+        );
+    }
+
+    /**
+     * Check for encryption.
+     *
+     * @param PdfDictionary $dictionary
+     * @throws CrossReferenceException
+     */
+    protected function checkForEncryption(PdfDictionary $dictionary)
+    {
+        if (isset($dictionary->value['Encrypt'])) {
+            throw new CrossReferenceException(
+                'This PDF document is encrypted and cannot be processed with FPDI.',
+                CrossReferenceException::ENCRYPTED
+            );
+        }
+    }
+
+    /**
+     * Find the start position for the first cross-reference.
+     *
+     * @return int The byte-offset position of the first cross-reference.
+     * @throws CrossReferenceException
+     */
+    protected function findStartXref()
+    {
+        $reader = $this->parser->getStreamReader();
+        $reader->reset(-self::$trailerSearchLength, self::$trailerSearchLength);
+
+        $buffer = $reader->getBuffer(false);
+        $pos = \strrpos($buffer, 'startxref');
+        $addOffset = 9;
+        if ($pos === false) {
+            // Some corrupted documents uses startref, instead of startxref
+            $pos = \strrpos($buffer, 'startref');
+            if ($pos === false) {
+                throw new CrossReferenceException(
+                    'Unable to find pointer to xref table',
+                    CrossReferenceException::NO_STARTXREF_FOUND
+                );
+            }
+            $addOffset = 8;
+        }
+
+        $reader->setOffset($pos + $addOffset);
+
+        try {
+            $value = $this->parser->readValue(null, PdfNumeric::class);
+        } catch (PdfTypeException $e) {
+            throw new CrossReferenceException(
+                'Invalid data after startxref keyword.',
+                CrossReferenceException::INVALID_DATA,
+                $e
+            );
+        }
+
+        return $value->value;
+    }
+}

plugins/55/dw2pdf/vendor/setasign/fpdi/src/PdfParser/CrossReference/CrossReferenceException.php

@@ -0,0 +1,80 @@
+<?php
+/**
+ * This file is part of FPDI
+ *
+ * @package   setasign\Fpdi
+ * @copyright Copyright (c) 2020 Setasign GmbH & Co. KG (https://www.setasign.com)
+ * @license   http://opensource.org/licenses/mit-license The MIT License
+ */
+
+namespace setasign\Fpdi\PdfParser\CrossReference;
+
+use setasign\Fpdi\PdfParser\PdfParserException;
+
+/**
+ * Exception used by the CrossReference and Reader classes.
+ *
+ * @package setasign\Fpdi\PdfParser\CrossReference
+ */
+class CrossReferenceException extends PdfParserException
+{
+    /**
+     * @var int
+     */
+    const INVALID_DATA = 0x0101;
+
+    /**
+     * @var int
+     */
+    const XREF_MISSING = 0x0102;
+
+    /**
+     * @var int
+     */
+    const ENTRIES_TOO_LARGE = 0x0103;
+
+    /**
+     * @var int
+     */
+    const ENTRIES_TOO_SHORT = 0x0104;
+
+    /**
+     * @var int
+     */
+    const NO_ENTRIES = 0x0105;
+
+    /**
+     * @var int
+     */
+    const NO_TRAILER_FOUND = 0x0106;
+
+    /**
+     * @var int
+     */
+    const NO_STARTXREF_FOUND = 0x0107;
+
+    /**
+     * @var int
+     */
+    const NO_XREF_FOUND = 0x0108;
+
+    /**
+     * @var int
+     */
+    const UNEXPECTED_END = 0x0109;
+
+    /**
+     * @var int
+     */
+    const OBJECT_NOT_FOUND = 0x010A;
+
+    /**
+     * @var int
+     */
+    const COMPRESSED_XREF = 0x010B;
+
+    /**
+     * @var int
+     */
+    const ENCRYPTED = 0x010C;
+}

plugins/55/dw2pdf/vendor/setasign/fpdi/src/PdfParser/CrossReference/FixedReader.php

@@ -0,0 +1,196 @@
+<?php
+/**
+ * This file is part of FPDI
+ *
+ * @package   setasign\Fpdi
+ * @copyright Copyright (c) 2020 Setasign GmbH & Co. KG (https://www.setasign.com)
+ * @license   http://opensource.org/licenses/mit-license The MIT License
+ */
+
+namespace setasign\Fpdi\PdfParser\CrossReference;
+
+use setasign\Fpdi\PdfParser\PdfParser;
+use setasign\Fpdi\PdfParser\StreamReader;
+
+/**
+ * Class FixedReader
+ *
+ * This reader allows a very less overhead parsing of single entries of the cross-reference, because the main entries
+ * are only read when needed and not in a single run.
+ *
+ * @package setasign\Fpdi\PdfParser\CrossReference
+ */
+class FixedReader extends AbstractReader implements ReaderInterface
+{
+    /**
+     * @var StreamReader
+     */
+    protected $reader;
+
+    /**
+     * Data of subsections.
+     *
+     * @var array
+     */
+    protected $subSections;
+
+    /**
+     * FixedReader constructor.
+     *
+     * @param PdfParser $parser
+     * @throws CrossReferenceException
+     */
+    public function __construct(PdfParser $parser)
+    {
+        $this->reader = $parser->getStreamReader();
+        $this->read();
+        parent::__construct($parser);
+    }
+
+    /**
+     * Get all subsection data.
+     *
+     * @return array
+     */
+    public function getSubSections()
+    {
+        return $this->subSections;
+    }
+
+    /**
+     * @inheritdoc
+     */
+    public function getOffsetFor($objectNumber)
+    {
+        foreach ($this->subSections as $offset => list($startObject, $objectCount)) {
+            if ($objectNumber >= $startObject && $objectNumber < ($startObject + $objectCount)) {
+                $position = $offset + 20 * ($objectNumber - $startObject);
+                $this->reader->ensure($position, 20);
+                $line = $this->reader->readBytes(20);
+                if ($line[17] === 'f') {
+                    return false;
+                }
+
+                return (int) \substr($line, 0, 10);
+            }
+        }
+
+        return false;
+    }
+
+    /**
+     * Read the cross-reference.
+     *
+     * This reader will only read the subsections in this method. The offsets were resolved individually by this
+     * information.
+     *
+     * @throws CrossReferenceException
+     */
+    protected function read()
+    {
+        $subSections = [];
+
+        $startObject = $entryCount = $lastLineStart = null;
+        $validityChecked = false;
+        while (($line = $this->reader->readLine(20)) !== false) {
+            if (\strpos($line, 'trailer') !== false) {
+                $this->reader->reset($lastLineStart);
+                break;
+            }
+
+            // jump over if line content doesn't match the expected string
+            if (\sscanf($line, '%d %d', $startObject, $entryCount) !== 2) {
+                continue;
+            }
+
+            $oldPosition = $this->reader->getPosition();
+            $position = $oldPosition + $this->reader->getOffset();
+
+            if (!$validityChecked && $entryCount > 0) {
+                $nextLine = $this->reader->readBytes(21);
+                /* Check the next line for maximum of 20 bytes and not longer
+                 * By catching 21 bytes and trimming the length should be still 21.
+                 */
+                if (\strlen(\trim($nextLine)) !== 21) {
+                    throw new CrossReferenceException(
+                        'Cross-reference entries are larger than 20 bytes.',
+                        CrossReferenceException::ENTRIES_TOO_LARGE
+                    );
+                }
+
+                /* Check for less than 20 bytes: cut the line to 20 bytes and trim; have to result in exactly 18 bytes.
+                 * If it would have less bytes the substring would get the first bytes of the next line which would
+                 * evaluate to a 20 bytes long string after trimming.
+                 */
+                if (\strlen(\trim(\substr($nextLine, 0, 20))) !== 18) {
+                    throw new CrossReferenceException(
+                        'Cross-reference entries are less than 20 bytes.',
+                        CrossReferenceException::ENTRIES_TOO_SHORT
+                    );
+                }
+
+                $validityChecked = true;
+            }
+
+            $subSections[$position] = [$startObject, $entryCount];
+
+            $lastLineStart = $position + $entryCount * 20;
+            $this->reader->reset($lastLineStart);
+        }
+
+        // reset after the last correct parsed line
+        $this->reader->reset($lastLineStart);
+
+        if (\count($subSections) === 0) {
+            throw new CrossReferenceException(
+                'No entries found in cross-reference.',
+                CrossReferenceException::NO_ENTRIES
+            );
+        }
+
+        $this->subSections = $subSections;
+    }
+
+    /**
+     * Fixes an invalid object number shift.
+     *
+     * This method can be used to repair documents with an invalid subsection header:
+     *
+     * <code>
+     * xref
+     * 1 7
+     * 0000000000 65535 f
+     * 0000000009 00000 n
+     * 0000412075 00000 n
+     * 0000412172 00000 n
+     * 0000412359 00000 n
+     * 0000412417 00000 n
+     * 0000412468 00000 n
+     * </code>
+     *
+     * It shall only be called on the first table.
+     *
+     * @return bool
+     */
+    public function fixFaultySubSectionShift()
+    {
+        $subSections = $this->getSubSections();
+        if (\count($subSections) > 1) {
+            return false;
+        }
+
+        $subSection = \current($subSections);
+        if ($subSection[0] != 1) {
+            return false;
+        }
+
+        if ($this->getOffsetFor(1) === false) {
+            foreach ($subSections as $offset => list($startObject, $objectCount)) {
+                $this->subSections[$offset] = [$startObject - 1, $objectCount];
+            }
+            return true;
+        }
+
+        return false;
+    }
+}

plugins/55/dw2pdf/vendor/setasign/fpdi/src/PdfParser/CrossReference/LineReader.php

@@ -0,0 +1,173 @@
+<?php
+/**
+ * This file is part of FPDI
+ *
+ * @package   setasign\Fpdi
+ * @copyright Copyright (c) 2020 Setasign GmbH & Co. KG (https://www.setasign.com)
+ * @license   http://opensource.org/licenses/mit-license The MIT License
+ */
+
+namespace setasign\Fpdi\PdfParser\CrossReference;
+
+use setasign\Fpdi\PdfParser\PdfParser;
+use setasign\Fpdi\PdfParser\StreamReader;
+
+/**
+ * Class LineReader
+ *
+ * This reader class read all cross-reference entries in a single run.
+ * It supports reading cross-references with e.g. invalid data (e.g. entries with a length < or > 20 bytes).
+ *
+ * @package setasign\Fpdi\PdfParser\CrossReference
+ */
+class LineReader extends AbstractReader implements ReaderInterface
+{
+    /**
+     * The object offsets.
+     *
+     * @var array
+     */
+    protected $offsets;
+
+    /**
+     * LineReader constructor.
+     *
+     * @param PdfParser $parser
+     * @throws CrossReferenceException
+     */
+    public function __construct(PdfParser $parser)
+    {
+        $this->read($this->extract($parser->getStreamReader()));
+        parent::__construct($parser);
+    }
+
+    /**
+     * @inheritdoc
+     */
+    public function getOffsetFor($objectNumber)
+    {
+        if (isset($this->offsets[$objectNumber])) {
+            return $this->offsets[$objectNumber][0];
+        }
+
+        return false;
+    }
+
+    /**
+     * Get all found offsets.
+     *
+     * @return array
+     */
+    public function getOffsets()
+    {
+        return $this->offsets;
+    }
+
+    /**
+     * Extracts the cross reference data from the stream reader.
+     *
+     * @param StreamReader $reader
+     * @return string
+     * @throws CrossReferenceException
+     */
+    protected function extract(StreamReader $reader)
+    {
+        $cycles = -1;
+        $bytesPerCycle = 100;
+
+        $reader->reset(null, $bytesPerCycle);
+
+        while (
+            ($trailerPos = \strpos($reader->getBuffer(false), 'trailer', \max($bytesPerCycle * $cycles++, 0))) === false
+        ) {
+            if ($reader->increaseLength($bytesPerCycle) === false) {
+                break;
+            }
+        }
+
+        if ($trailerPos === false) {
+            throw new CrossReferenceException(
+                'Unexpected end of cross reference. "trailer"-keyword not found.',
+                CrossReferenceException::NO_TRAILER_FOUND
+            );
+        }
+
+        $xrefContent = \substr($reader->getBuffer(false), 0, $trailerPos);
+        $reader->reset($reader->getPosition() + $trailerPos);
+
+        return $xrefContent;
+    }
+
+    /**
+     * Read the cross-reference entries.
+     *
+     * @param string $xrefContent
+     * @throws CrossReferenceException
+     */
+    protected function read($xrefContent)
+    {
+        // get eol markers in the first 100 bytes
+        \preg_match_all("/(\r\n|\n|\r)/", \substr($xrefContent, 0, 100), $m);
+
+        if (\count($m[0]) === 0) {
+            throw new CrossReferenceException(
+                'No data found in cross-reference.',
+                CrossReferenceException::INVALID_DATA
+            );
+        }
+
+        // count(array_count_values()) is faster then count(array_unique())
+        // @see https://github.com/symfony/symfony/pull/23731
+        // can be reverted for php7.2
+        $differentLineEndings = \count(\array_count_values($m[0]));
+        if ($differentLineEndings > 1) {
+            $lines = \preg_split("/(\r\n|\n|\r)/", $xrefContent, -1, PREG_SPLIT_NO_EMPTY);
+        } else {
+            $lines = \explode($m[0][0], $xrefContent);
+        }
+
+        unset($differentLineEndings, $m);
+        $linesCount = \count($lines);
+        $start = null;
+        $entryCount = 0;
+
+        $offsets = [];
+
+        /** @noinspection ForeachInvariantsInspection */
+        for ($i = 0; $i < $linesCount; $i++) {
+            $line = \trim($lines[$i]);
+            if ($line) {
+                $pieces = \explode(' ', $line);
+
+                $c = \count($pieces);
+                switch ($c) {
+                    case 2:
+                        $start = (int) $pieces[0];
+                        $entryCount += (int) $pieces[1];
+                        break;
+
+                    /** @noinspection PhpMissingBreakStatementInspection */
+                    case 3:
+                        switch ($pieces[2]) {
+                            case 'n':
+                                $offsets[$start] = [(int) $pieces[0], (int) $pieces[1]];
+                                $start++;
+                                break 2;
+                            case 'f':
+                                $start++;
+                                break 2;
+                        }
+                        // fall through if pieces doesn't match
+
+                    default:
+                        throw new CrossReferenceException(
+                            \sprintf('Unexpected data in xref table (%s)', \implode(' ', $pieces)),
+                            CrossReferenceException::INVALID_DATA
+                        );
+                }
+            }
+        }
+
+        $this->offsets = $offsets;
+    }
+}

plugins/55/dw2pdf/vendor/setasign/fpdi/src/PdfParser/CrossReference/ReaderInterface.php

@@ -0,0 +1,35 @@
+<?php
+/**
+ * This file is part of FPDI
+ *
+ * @package   setasign\Fpdi
+ * @copyright Copyright (c) 2020 Setasign GmbH & Co. KG (https://www.setasign.com)
+ * @license   http://opensource.org/licenses/mit-license The MIT License
+ */
+
+namespace setasign\Fpdi\PdfParser\CrossReference;
+
+use setasign\Fpdi\PdfParser\Type\PdfDictionary;
+
+/**
+ * ReaderInterface for cross-reference readers.
+ *
+ * @package setasign\Fpdi\PdfParser\CrossReference
+ */
+interface ReaderInterface
+{
+    /**
+     * Get an offset by an object number.
+     *
+     * @param int $objectNumber
+     * @return int|bool False if the offset was not found.
+     */
+    public function getOffsetFor($objectNumber);
+
+    /**
+     * Get the trailer related to this cross reference.
+     *
+     * @return PdfDictionary
+     */
+    public function getTrailer();
+}

plugins/55/dw2pdf/vendor/setasign/fpdi/src/PdfParser/Filter/Ascii85.php

@@ -0,0 +1,105 @@
+<?php
+/**
+ * This file is part of FPDI
+ *
+ * @package   setasign\Fpdi
+ * @copyright Copyright (c) 2020 Setasign GmbH & Co. KG (https://www.setasign.com)
+ * @license   http://opensource.org/licenses/mit-license The MIT License
+ */
+
+namespace setasign\Fpdi\PdfParser\Filter;
+
+/**
+ * Class for handling ASCII base-85 encoded data
+ *
+ * @package setasign\Fpdi\PdfParser\Filter
+ */
+class Ascii85 implements FilterInterface
+{
+    /**
+     * Decode ASCII85 encoded string.
+     *
+     * @param string $data The input string
+     * @return string
+     * @throws Ascii85Exception
+     */
+    public function decode($data)
+    {
+        $out = '';
+        $state = 0;
+        $chn = null;
+
+        $data = \preg_replace('/\s/', '', $data);
+
+        $l = \strlen($data);
+
+        /** @noinspection ForeachInvariantsInspection */
+        for ($k = 0; $k < $l; ++$k) {
+            $ch = \ord($data[$k]) & 0xff;
+
+            //Start <~
+            if ($k === 0 && $ch === 60 && isset($data[$k + 1]) && (\ord($data[$k + 1]) & 0xFF) === 126) {
+                $k++;
+                continue;
+            }
+            //End ~>
+            if ($ch === 126 && isset($data[$k + 1]) && (\ord($data[$k + 1]) & 0xFF) === 62) {
+                break;
+            }
+
+            if ($ch === 122 /* z */ && $state === 0) {
+                $out .= \chr(0) . \chr(0) . \chr(0) . \chr(0);
+                continue;
+            }
+
+            if ($ch < 33 /* ! */ || $ch > 117 /* u */) {
+                throw new Ascii85Exception(
+                    'Illegal character found while ASCII85 decode.',
+                    Ascii85Exception::ILLEGAL_CHAR_FOUND
+                );
+            }
+
+            $chn[$state] = $ch - 33;/* ! */
+            $state++;
+
+            if ($state === 5) {
+                $state = 0;
+                $r = 0;
+                for ($j = 0; $j < 5; ++$j) {
+                    /** @noinspection UnnecessaryCastingInspection */
+                    $r = (int)($r * 85 + $chn[$j]);
+                }
+
+                $out .= \chr($r >> 24)
+                    . \chr($r >> 16)
+                    . \chr($r >> 8)
+                    . \chr($r);
+            }
+        }
+
+        if ($state === 1) {
+            throw new Ascii85Exception(
+                'Illegal length while ASCII85 decode.',
+                Ascii85Exception::ILLEGAL_LENGTH
+            );
+        }
+
+        if ($state === 2) {
+            $r = $chn[0] * 85 * 85 * 85 * 85 + ($chn[1] + 1) * 85 * 85 * 85;
+            $out .= \chr($r >> 24);
+
+        } elseif ($state === 3) {
+            $r = $chn[0] * 85 * 85 * 85 * 85 + $chn[1] * 85 * 85 * 85 + ($chn[2] + 1) * 85 * 85;
+            $out .= \chr($r >> 24);
+            $out .= \chr($r >> 16);
+
+        } elseif ($state === 4) {
+            $r = $chn[0] * 85 * 85 * 85 * 85 + $chn[1] * 85 * 85 * 85 + $chn[2] * 85 * 85 + ($chn[3] + 1) * 85;
+            $out .= \chr($r >> 24);
+            $out .= \chr($r >> 16);
+            $out .= \chr($r >> 8);
+        }
+
+        return $out;
+    }
+}

plugins/55/dw2pdf/vendor/setasign/fpdi/src/PdfParser/Filter/Ascii85Exception.php

@@ -0,0 +1,28 @@
+<?php
+/**
+ * This file is part of FPDI
+ *
+ * @package   setasign\Fpdi
+ * @copyright Copyright (c) 2020 Setasign GmbH & Co. KG (https://www.setasign.com)
+ * @license   http://opensource.org/licenses/mit-license The MIT License
+ */
+
+namespace setasign\Fpdi\PdfParser\Filter;
+
+/**
+ * Exception for Ascii85 filter class
+ *
+ * @package setasign\Fpdi\PdfParser\Filter
+ */
+class Ascii85Exception extends FilterException
+{
+    /**
+     * @var integer
+     */
+    const ILLEGAL_CHAR_FOUND = 0x0301;
+
+    /**
+     * @var integer
+     */
+    const ILLEGAL_LENGTH = 0x0302;
+}

plugins/55/dw2pdf/vendor/setasign/fpdi/src/PdfParser/Filter/AsciiHex.php

@@ -0,0 +1,48 @@
+<?php
+/**
+ * This file is part of FPDI
+ *
+ * @package   setasign\Fpdi
+ * @copyright Copyright (c) 2020 Setasign GmbH & Co. KG (https://www.setasign.com)
+ * @license   http://opensource.org/licenses/mit-license The MIT License
+ */
+
+namespace setasign\Fpdi\PdfParser\Filter;
+
+/**
+ * Class for handling ASCII hexadecimal encoded data
+ *
+ * @package setasign\Fpdi\PdfParser\Filter
+ */
+class AsciiHex implements FilterInterface
+{
+    /**
+     * Converts an ASCII hexadecimal encoded string into its binary representation.
+     *
+     * @param string $data The input string
+     * @return string
+     */
+    public function decode($data)
+    {
+        $data = \preg_replace('/[^0-9A-Fa-f]/', '', \rtrim($data, '>'));
+        if ((\strlen($data) % 2) === 1) {
+            $data .= '0';
+        }
+
+        return \pack('H*', $data);
+    }
+
+    /**
+     * Converts a string into ASCII hexadecimal representation.
+     *
+     * @param string $data The input string
+     * @param boolean $leaveEOD
+     * @return string
+     */
+    public function encode($data, $leaveEOD = false)
+    {
+        $t = \unpack('H*', $data);
+        return \current($t)
+            . ($leaveEOD ? '' : '>');
+    }
+}

plugins/55/dw2pdf/vendor/setasign/fpdi/src/PdfParser/Filter/FilterException.php

@@ -0,0 +1,24 @@
+<?php
+/**
+ * This file is part of FPDI
+ *
+ * @package   setasign\Fpdi
+ * @copyright Copyright (c) 2020 Setasign GmbH & Co. KG (https://www.setasign.com)
+ * @license   http://opensource.org/licenses/mit-license The MIT License
+ */
+
+namespace setasign\Fpdi\PdfParser\Filter;
+
+use setasign\Fpdi\PdfParser\PdfParserException;
+
+/**
+ * Exception for filters
+ *
+ * @package setasign\Fpdi\PdfParser\Filter
+ */
+class FilterException extends PdfParserException
+{
+    const UNSUPPORTED_FILTER = 0x0201;
+
+    const NOT_IMPLEMENTED = 0x0202;
+}

plugins/55/dw2pdf/vendor/setasign/fpdi/src/PdfParser/Filter/FilterInterface.php

@@ -0,0 +1,26 @@
+<?php
+/**
+ * This file is part of FPDI
+ *
+ * @package   setasign\Fpdi
+ * @copyright Copyright (c) 2020 Setasign GmbH & Co. KG (https://www.setasign.com)
+ * @license   http://opensource.org/licenses/mit-license The MIT License
+ */
+
+namespace setasign\Fpdi\PdfParser\Filter;
+
+/**
+ * Interface for filters
+ *
+ * @package setasign\Fpdi\PdfParser\Filter
+ */
+interface FilterInterface
+{
+    /**
+     * Decode a string.
+     *
+     * @param string $data The input string
+     * @return string
+     */
+    public function decode($data);
+}

plugins/55/dw2pdf/vendor/setasign/fpdi/src/PdfParser/Filter/Flate.php

@@ -0,0 +1,87 @@
+<?php
+/**
+ * This file is part of FPDI
+ *
+ * @package   setasign\Fpdi
+ * @copyright Copyright (c) 2020 Setasign GmbH & Co. KG (https://www.setasign.com)
+ * @license   http://opensource.org/licenses/mit-license The MIT License
+ */
+
+namespace setasign\Fpdi\PdfParser\Filter;
+
+/**
+ * Class for handling zlib/deflate encoded data
+ *
+ * @package setasign\Fpdi\PdfParser\Filter
+ */
+class Flate implements FilterInterface
+{
+    /**
+     * Checks whether the zlib extension is loaded.
+     *
+     * Used for testing purpose.
+     *
+     * @return boolean
+     * @internal
+     */
+    protected function extensionLoaded()
+    {
+        return \extension_loaded('zlib');
+    }
+
+    /**
+     * Decodes a flate compressed string.
+     *
+     * @param string $data The input string
+     * @return string
+     * @throws FlateException
+     */
+    public function decode($data)
+    {
+        if ($this->extensionLoaded()) {
+            $oData = $data;
+            $data = @((\strlen($data) > 0) ? \gzuncompress($data) : '');
+            if ($data === false) {
+                // let's try if the checksum is CRC32
+                $fh = fopen('php://temp', 'w+b');
+                fwrite($fh, "\x1f\x8b\x08\x00\x00\x00\x00\x00" . $oData);
+                stream_filter_append($fh, 'zlib.inflate', STREAM_FILTER_READ, ['window' => 30]);
+                fseek($fh, 0);
+                $data = stream_get_contents($fh);
+                fclose($fh);
+
+                if ($data) {
+                    return $data;
+                }
+
+                // Try this fallback
+                $tries = 0;
+
+                $oDataLen = strlen($oData);
+                while ($tries < 6 && ($data === false || (strlen($data) < (strlen($oDataLen) - $tries - 1)))) {
+                    $data = @(gzinflate(substr($oData, $tries)));
+                    $tries++;
+                }
+
+                // let's use this fallback only if the $data is longer than the original data
+                if (strlen($data) > ($oDataLen - $tries - 1)) {
+                    return $data;
+                }
+
+                if (!$data) {
+                    throw new FlateException(
+                        'Error while decompressing stream.',
+                        FlateException::DECOMPRESS_ERROR
+                    );
+                }
+            }
+        } else {
+            throw new FlateException(
+                'To handle FlateDecode filter, enable zlib support in PHP.',
+                FlateException::NO_ZLIB
+            );
+        }
+
+        return $data;
+    }
+}

plugins/55/dw2pdf/vendor/setasign/fpdi/src/PdfParser/Filter/FlateException.php

@@ -0,0 +1,28 @@
+<?php
+/**
+ * This file is part of FPDI
+ *
+ * @package   setasign\Fpdi
+ * @copyright Copyright (c) 2020 Setasign GmbH & Co. KG (https://www.setasign.com)
+ * @license   http://opensource.org/licenses/mit-license The MIT License
+ */
+
+namespace setasign\Fpdi\PdfParser\Filter;
+
+/**
+ * Exception for flate filter class
+ *
+ * @package setasign\Fpdi\PdfParser\Filter
+ */
+class FlateException extends FilterException
+{
+    /**
+     * @var integer
+     */
+    const NO_ZLIB = 0x0401;
+
+    /**
+     * @var integer
+     */
+    const DECOMPRESS_ERROR = 0x0402;
+}

plugins/55/dw2pdf/vendor/setasign/fpdi/src/PdfParser/Filter/Lzw.php

@@ -0,0 +1,189 @@
+<?php
+/**
+ * This file is part of FPDI
+ *
+ * @package   setasign\Fpdi
+ * @copyright Copyright (c) 2020 Setasign GmbH & Co. KG (https://www.setasign.com)
+ * @license   http://opensource.org/licenses/mit-license The MIT License
+ */
+
+namespace setasign\Fpdi\PdfParser\Filter;
+
+/**
+ * Class for handling LZW encoded data
+ *
+ * @package setasign\Fpdi\PdfParser\Filter
+ */
+class Lzw implements FilterInterface
+{
+    /**
+     * @var null|string
+     */
+    protected $data;
+
+    /**
+     * @var array
+     */
+    protected $sTable = [];
+
+    /**
+     * @var int
+     */
+    protected $dataLength = 0;
+
+    /**
+     * @var int
+     */
+    protected $tIdx;
+
+    /**
+     * @var int
+     */
+    protected $bitsToGet = 9;
+
+    /**
+     * @var int
+     */
+    protected $bytePointer;
+
+    /**
+     * @var int
+     */
+    protected $nextData = 0;
+
+    /**
+     * @var int
+     */
+    protected $nextBits = 0;
+
+    /**
+     * @var array
+     */
+    protected $andTable = [511, 1023, 2047, 4095];
+
+    /**
+     * Method to decode LZW compressed data.
+     *
+     * @param string $data The compressed data
+     * @return string The uncompressed data
+     * @throws LzwException
+     */
+    public function decode($data)
+    {
+        if ($data[0] === "\x00" && $data[1] === "\x01") {
+            throw new LzwException(
+                'LZW flavour not supported.',
+                LzwException::LZW_FLAVOUR_NOT_SUPPORTED
+            );
+        }
+
+        $this->initsTable();
+
+        $this->data = $data;
+        $this->dataLength = \strlen($data);
+
+        // Initialize pointers
+        $this->bytePointer = 0;
+
+        $this->nextData = 0;
+        $this->nextBits = 0;
+
+        $oldCode = 0;
+
+        $uncompData = '';
+
+        while (($code = $this->getNextCode()) !== 257) {
+            if ($code === 256) {
+                $this->initsTable();
+                $code = $this->getNextCode();
+
+                if ($code === 257) {
+                    break;
+                }
+
+                $uncompData .= $this->sTable[$code];
+                $oldCode = $code;
+
+            } else {
+                if ($code < $this->tIdx) {
+                    $string = $this->sTable[$code];
+                    $uncompData .= $string;
+
+                    $this->addStringToTable($this->sTable[$oldCode], $string[0]);
+                    $oldCode = $code;
+                } else {
+                    $string = $this->sTable[$oldCode];
+                    $string .= $string[0];
+                    $uncompData .= $string;
+
+                    $this->addStringToTable($string);
+                    $oldCode = $code;
+                }
+            }
+        }
+
+        return $uncompData;
+    }
+
+    /**
+     * Initialize the string table.
+     */
+    protected function initsTable()
+    {
+        $this->sTable = [];
+
+        for ($i = 0; $i < 256; $i++) {
+            $this->sTable[$i] = \chr($i);
+        }
+
+        $this->tIdx = 258;
+        $this->bitsToGet = 9;
+    }
+
+    /**
+     * Add a new string to the string table.
+     *
+     * @param string $oldString
+     * @param string $newString
+     */
+    protected function addStringToTable($oldString, $newString = '')
+    {
+        $string = $oldString . $newString;
+
+        // Add this new String to the table
+        $this->sTable[$this->tIdx++] = $string;
+
+        if ($this->tIdx === 511) {
+            $this->bitsToGet = 10;
+        } elseif ($this->tIdx === 1023) {
+            $this->bitsToGet = 11;
+        } elseif ($this->tIdx === 2047) {
+            $this->bitsToGet = 12;
+        }
+    }
+
+    /**
+     * Returns the next 9, 10, 11 or 12 bits.
+     *
+     * @return integer
+     */
+    protected function getNextCode()
+    {
+        if ($this->bytePointer === $this->dataLength) {
+            return 257;
+        }
+
+        $this->nextData = ($this->nextData << 8) | (\ord($this->data[$this->bytePointer++]) & 0xff);
+        $this->nextBits += 8;
+
+        if ($this->nextBits < $this->bitsToGet) {
+            $this->nextData = ($this->nextData << 8) | (\ord($this->data[$this->bytePointer++]) & 0xff);
+            $this->nextBits += 8;
+        }
+
+        $code = ($this->nextData >> ($this->nextBits - $this->bitsToGet)) & $this->andTable[$this->bitsToGet - 9];
+        $this->nextBits -= $this->bitsToGet;
+
+        return $code;
+    }
+}

plugins/55/dw2pdf/vendor/setasign/fpdi/src/PdfParser/Filter/LzwException.php

@@ -0,0 +1,23 @@
+<?php
+/**
+ * This file is part of FPDI
+ *
+ * @package   setasign\Fpdi
+ * @copyright Copyright (c) 2020 Setasign GmbH & Co. KG (https://www.setasign.com)
+ * @license   http://opensource.org/licenses/mit-license The MIT License
+ */
+
+namespace setasign\Fpdi\PdfParser\Filter;
+
+/**
+ * Exception for LZW filter class
+ *
+ * @package setasign\Fpdi\PdfParser\Filter
+ */
+class LzwException extends FilterException
+{
+    /**
+     * @var integer
+     */
+    const LZW_FLAVOUR_NOT_SUPPORTED = 0x0501;
+}

plugins/55/dw2pdf/vendor/setasign/fpdi/src/PdfParser/PdfParser.php

@@ -0,0 +1,378 @@
+<?php
+/**
+ * This file is part of FPDI
+ *
+ * @package   setasign\Fpdi
+ * @copyright Copyright (c) 2020 Setasign GmbH & Co. KG (https://www.setasign.com)
+ * @license   http://opensource.org/licenses/mit-license The MIT License
+ */
+
+namespace setasign\Fpdi\PdfParser;
+
+use setasign\Fpdi\PdfParser\CrossReference\CrossReference;
+use setasign\Fpdi\PdfParser\CrossReference\CrossReferenceException;
+use setasign\Fpdi\PdfParser\Type\PdfArray;
+use setasign\Fpdi\PdfParser\Type\PdfBoolean;
+use setasign\Fpdi\PdfParser\Type\PdfDictionary;
+use setasign\Fpdi\PdfParser\Type\PdfHexString;
+use setasign\Fpdi\PdfParser\Type\PdfIndirectObject;
+use setasign\Fpdi\PdfParser\Type\PdfIndirectObjectReference;
+use setasign\Fpdi\PdfParser\Type\PdfName;
+use setasign\Fpdi\PdfParser\Type\PdfNull;
+use setasign\Fpdi\PdfParser\Type\PdfNumeric;
+use setasign\Fpdi\PdfParser\Type\PdfString;
+use setasign\Fpdi\PdfParser\Type\PdfToken;
+use setasign\Fpdi\PdfParser\Type\PdfType;
+
+/**
+ * A PDF parser class
+ *
+ * @package setasign\Fpdi\PdfParser
+ */
+class PdfParser
+{
+    /**
+     * @var StreamReader
+     */
+    protected $streamReader;
+
+    /**
+     * @var Tokenizer
+     */
+    protected $tokenizer;
+
+    /**
+     * The file header.
+     *
+     * @var string
+     */
+    protected $fileHeader;
+
+    /**
+     * The offset to the file header.
+     *
+     * @var int
+     */
+    protected $fileHeaderOffset;
+
+    /**
+     * @var CrossReference
+     */
+    protected $xref;
+
+    /**
+     * All read objects.
+     *
+     * @var array
+     */
+    protected $objects = [];
+
+    /**
+     * PdfParser constructor.
+     *
+     * @param StreamReader $streamReader
+     */
+    public function __construct(StreamReader $streamReader)
+    {
+        $this->streamReader = $streamReader;
+        $this->tokenizer = new Tokenizer($streamReader);
+    }
+
+    /**
+     * Removes cycled references.
+     *
+     * @internal
+     */
+    public function cleanUp()
+    {
+        $this->xref = null;
+    }
+
+    /**
+     * Get the stream reader instance.
+     *
+     * @return StreamReader
+     */
+    public function getStreamReader()
+    {
+        return $this->streamReader;
+    }
+
+    /**
+     * Get the tokenizer instance.
+     *
+     * @return Tokenizer
+     */
+    public function getTokenizer()
+    {
+        return $this->tokenizer;
+    }
+
+    /**
+     * Resolves the file header.
+     *
+     * @throws PdfParserException
+     * @return int
+     */
+    protected function resolveFileHeader()
+    {
+        if ($this->fileHeader) {
+            return $this->fileHeaderOffset;
+        }
+
+        $this->streamReader->reset(0);
+        $offset = false;
+        $maxIterations = 1000;
+        while (true) {
+            $buffer = $this->streamReader->getBuffer(false);
+            $offset = \strpos($buffer, '%PDF-');
+            if ($offset === false) {
+                if (!$this->streamReader->increaseLength(100) || (--$maxIterations === 0)) {
+                    throw new PdfParserException(
+                        'Unable to find PDF file header.',
+                        PdfParserException::FILE_HEADER_NOT_FOUND
+                    );
+                }
+                continue;
+            }
+            break;
+        }
+
+        $this->fileHeaderOffset = $offset;
+        $this->streamReader->setOffset($offset);
+
+        $this->fileHeader = \trim($this->streamReader->readLine());
+        return $this->fileHeaderOffset;
+    }
+
+    /**
+     * Get the cross reference instance.
+     *
+     * @return CrossReference
+     * @throws CrossReferenceException
+     * @throws PdfParserException
+     */
+    public function getCrossReference()
+    {
+        if ($this->xref === null) {
+            $this->xref = new CrossReference($this, $this->resolveFileHeader());
+        }
+
+        return $this->xref;
+    }
+
+    /**
+     * Get the PDF version.
+     *
+     * @return int[] An array of major and minor version.
+     * @throws PdfParserException
+     */
+    public function getPdfVersion()
+    {
+        $this->resolveFileHeader();
+
+        if (\preg_match('/%PDF-(\d)\.(\d)/', $this->fileHeader, $result) === 0) {
+            throw new PdfParserException(
+                'Unable to extract PDF version from file header.',
+                PdfParserException::PDF_VERSION_NOT_FOUND
+            );
+        }
+        list(, $major, $minor) = $result;
+
+        $catalog = $this->getCatalog();
+        if (isset($catalog->value['Version'])) {
+            $versionParts = \explode('.', PdfName::unescape(PdfType::resolve($catalog->value['Version'], $this)->value));
+            if (count($versionParts) === 2) {
+                list($major, $minor) = $versionParts;
+            }
+        }
+
+        return [(int) $major, (int) $minor];
+    }
+
+    /**
+     * Get the catalog dictionary.
+     *
+     * @return PdfDictionary
+     * @throws Type\PdfTypeException
+     * @throws CrossReferenceException
+     * @throws PdfParserException
+     */
+    public function getCatalog()
+    {
+        $xref = $this->getCrossReference();
+        $trailer = $xref->getTrailer();
+
+        $catalog = PdfType::resolve(PdfDictionary::get($trailer, 'Root'), $this);
+
+        return PdfDictionary::ensure($catalog);
+    }
+
+    /**
+     * Get an indirect object by its object number.
+     *
+     * @param int $objectNumber
+     * @param bool $cache
+     * @return PdfIndirectObject
+     * @throws CrossReferenceException
+     * @throws PdfParserException
+     */
+    public function getIndirectObject($objectNumber, $cache = false)
+    {
+        $objectNumber = (int) $objectNumber;
+        if (isset($this->objects[$objectNumber])) {
+            return $this->objects[$objectNumber];
+        }
+
+        $xref = $this->getCrossReference();
+        $object = $xref->getIndirectObject($objectNumber);
+
+        if ($cache) {
+            $this->objects[$objectNumber] = $object;
+        }
+
+        return $object;
+    }
+
+    /**
+     * Read a PDF value.
+     *
+     * @param null|bool|string $token
+     * @param null|string $expectedType
+     * @return bool|PdfArray|PdfBoolean|PdfHexString|PdfName|PdfNull|PdfNumeric|PdfString|PdfToken|PdfIndirectObjectReference
+     * @throws Type\PdfTypeException
+     */
+    public function readValue($token = null, $expectedType = null)
+    {
+        if ($token === null) {
+            $token = $this->tokenizer->getNextToken();
+        }
+
+        if ($token === false) {
+            if ($expectedType !== null) {
+                throw new Type\PdfTypeException('Got unexpected token type.', Type\PdfTypeException::INVALID_DATA_TYPE);
+            }
+            return false;
+        }
+
+        switch ($token) {
+            case '(':
+                $this->ensureExpectedType($token, $expectedType);
+                return PdfString::parse($this->streamReader);
+
+            case '<':
+                if ($this->streamReader->getByte() === '<') {
+                    $this->ensureExpectedType('<<', $expectedType);
+                    $this->streamReader->addOffset(1);
+                    return PdfDictionary::parse($this->tokenizer, $this->streamReader, $this);
+                }
+
+                $this->ensureExpectedType($token, $expectedType);
+                return PdfHexString::parse($this->streamReader);
+
+            case '/':
+                $this->ensureExpectedType($token, $expectedType);
+                return PdfName::parse($this->tokenizer, $this->streamReader);
+
+            case '[':
+                $this->ensureExpectedType($token, $expectedType);
+                return PdfArray::parse($this->tokenizer, $this);
+
+            default:
+                if (\is_numeric($token)) {
+                    if (($token2 = $this->tokenizer->getNextToken()) !== false) {
+                        if (\is_numeric($token2)) {
+                            if (($token3 = $this->tokenizer->getNextToken()) !== false) {
+                                switch ($token3) {
+                                    case 'obj':
+                                        if ($expectedType !== null && $expectedType !== PdfIndirectObject::class) {
+                                            throw new Type\PdfTypeException(
+                                                'Got unexpected token type.', Type\PdfTypeException::INVALID_DATA_TYPE
+                                            );
+                                        }
+
+                                        return PdfIndirectObject::parse(
+                                            $token,
+                                            $token2,
+                                            $this,
+                                            $this->tokenizer,
+                                            $this->streamReader
+                                        );
+                                    case 'R':
+                                        if ($expectedType !== null &&
+                                            $expectedType !== PdfIndirectObjectReference::class
+                                        ) {
+                                            throw new Type\PdfTypeException(
+                                                'Got unexpected token type.', Type\PdfTypeException::INVALID_DATA_TYPE
+                                            );
+                                        }
+
+                                        return PdfIndirectObjectReference::create($token, $token2);
+                                }
+
+                                $this->tokenizer->pushStack($token3);
+                            }
+                        }
+
+                        $this->tokenizer->pushStack($token2);
+                    }
+
+                    if ($expectedType !== null && $expectedType !== PdfNumeric::class) {
+                        throw new Type\PdfTypeException(
+                            'Got unexpected token type.', Type\PdfTypeException::INVALID_DATA_TYPE
+                        );
+                    }
+                    return PdfNumeric::create($token);
+                }
+
+                if ($token === 'true' || $token === 'false') {
+                    $this->ensureExpectedType($token, $expectedType);
+                    return PdfBoolean::create($token === 'true');
+                }
+
+                if ($token === 'null') {
+                    $this->ensureExpectedType($token, $expectedType);
+                    return new PdfNull();
+                }
+
+                if ($expectedType !== null && $expectedType !== PdfToken::class) {
+                    throw new Type\PdfTypeException(
+                        'Got unexpected token type.', Type\PdfTypeException::INVALID_DATA_TYPE
+                    );
+                }
+
+                $v = new PdfToken();
+                $v->value = $token;
+
+                return $v;
+        }
+    }
+
+    /**
+     * Ensures that the token will evaluate to an expected object type (or not).
+     *
+     * @param string $token
+     * @param string|null $expectedType
+     * @return bool
+     * @throws Type\PdfTypeException
+     */
+    private function ensureExpectedType($token, $expectedType)
+    {
+        static $mapping = [
+            '(' => PdfString::class,
+            '<' => PdfHexString::class,
+            '<<' => PdfDictionary::class,
+            '/' => PdfName::class,
+            '[' => PdfArray::class,
+            'true' => PdfBoolean::class,
+            'false' => PdfBoolean::class,
+            'null' => PdfNull::class
+        ];
+
+        if ($expectedType === null || $mapping[$token] === $expectedType) {
+            return true;
+        }
+
+        throw new Type\PdfTypeException('Got unexpected token type.', Type\PdfTypeException::INVALID_DATA_TYPE);
+    }
+}

plugins/55/dw2pdf/vendor/setasign/fpdi/src/PdfParser/PdfParserException.php

@@ -0,0 +1,50 @@
+<?php
+/**
+ * This file is part of FPDI
+ *
+ * @package   setasign\Fpdi
+ * @copyright Copyright (c) 2020 Setasign GmbH & Co. KG (https://www.setasign.com)
+ * @license   http://opensource.org/licenses/mit-license The MIT License
+ */
+
+namespace setasign\Fpdi\PdfParser;
+
+use setasign\Fpdi\FpdiException;
+
+/**
+ * Exception for the pdf parser class
+ *
+ * @package setasign\Fpdi\PdfParser
+ */
+class PdfParserException extends FpdiException
+{
+    /**
+     * @var int
+     */
+    const NOT_IMPLEMENTED = 0x0001;
+
+    /**
+     * @var int
+     */
+    const IMPLEMENTED_IN_FPDI_PDF_PARSER = 0x0002;
+
+    /**
+     * @var int
+     */
+    const INVALID_DATA_TYPE = 0x0003;
+
+    /**
+     * @var int
+     */
+    const FILE_HEADER_NOT_FOUND = 0x0004;
+
+    /**
+     * @var int
+     */
+    const PDF_VERSION_NOT_FOUND = 0x0005;
+
+    /**
+     * @var int
+     */
+    const INVALID_DATA_SIZE = 0x0006;
+}

plugins/55/dw2pdf/vendor/setasign/fpdi/src/PdfParser/StreamReader.php

@@ -0,0 +1,468 @@
+<?php
+/**
+ * This file is part of FPDI
+ *
+ * @package   setasign\Fpdi
+ * @copyright Copyright (c) 2020 Setasign GmbH & Co. KG (https://www.setasign.com)
+ * @license   http://opensource.org/licenses/mit-license The MIT License
+ */
+
+namespace setasign\Fpdi\PdfParser;
+
+/**
+ * A stream reader class
+ *
+ * @package setasign\Fpdi\PdfParser
+ */
+class StreamReader
+{
+    /**
+     * Creates a stream reader instance by a string value.
+     *
+     * @param string $content
+     * @param int $maxMemory
+     * @return StreamReader
+     */
+    public static function createByString($content, $maxMemory = 2097152)
+    {
+        $h = \fopen('php://temp/maxmemory:' . ((int) $maxMemory), 'r+b');
+        \fwrite($h, $content);
+        \rewind($h);
+
+        return new self($h, true);
+    }
+
+    /**
+     * Creates a stream reader instance by a filename.
+     *
+     * @param string $filename
+     * @return StreamReader
+     */
+    public static function createByFile($filename)
+    {
+        $h = \fopen($filename, 'rb');
+        return new self($h, true);
+    }
+
+    /**
+     * Defines whether the stream should be closed when the stream reader instance is deconstructed or not.
+     *
+     * @var bool
+     */
+    protected $closeStream;
+
+    /**
+     * The stream resource.
+     *
+     * @var resource
+     */
+    protected $stream;
+
+    /**
+     * The byte-offset position in the stream.
+     *
+     * @var int
+     */
+    protected $position;
+
+    /**
+     * The byte-offset position in the buffer.
+     *
+     * @var int
+     */
+    protected $offset;
+
+    /**
+     * The buffer length.
+     *
+     * @var int
+     */
+    protected $bufferLength;
+
+    /**
+     * The total length of the stream.
+     *
+     * @var int
+     */
+    protected $totalLength;
+
+    /**
+     * The buffer.
+     *
+     * @var string
+     */
+    protected $buffer;
+
+    /**
+     * StreamReader constructor.
+     *
+     * @param resource $stream
+     * @param bool $closeStream Defines whether to close the stream resource if the instance is destructed or not.
+     */
+    public function __construct($stream, $closeStream = false)
+    {
+        if (!\is_resource($stream)) {
+            throw new \InvalidArgumentException(
+                'No stream given.'
+            );
+        }
+
+        $metaData = \stream_get_meta_data($stream);
+        if (!$metaData['seekable']) {
+            throw new \InvalidArgumentException(
+                'Given stream is not seekable!'
+            );
+        }
+
+        $this->stream = $stream;
+        $this->closeStream = $closeStream;
+        $this->reset();
+    }
+
+    /**
+     * The destructor.
+     */
+    public function __destruct()
+    {
+        $this->cleanUp();
+    }
+
+    /**
+     * Closes the file handle.
+     */
+    public function cleanUp()
+    {
+        if ($this->closeStream && is_resource($this->stream)) {
+            \fclose($this->stream);
+        }
+    }
+
+    /**
+     * Returns the byte length of the buffer.
+     *
+     * @param bool $atOffset
+     * @return int
+     */
+    public function getBufferLength($atOffset = false)
+    {
+        if ($atOffset === false) {
+            return $this->bufferLength;
+        }
+
+        return $this->bufferLength - $this->offset;
+    }
+
+    /**
+     * Get the current position in the stream.
+     *
+     * @return int
+     */
+    public function getPosition()
+    {
+        return $this->position;
+    }
+
+    /**
+     * Returns the current buffer.
+     *
+     * @param bool $atOffset
+     * @return string
+     */
+    public function getBuffer($atOffset = true)
+    {
+        if ($atOffset === false) {
+            return $this->buffer;
+        }
+
+        $string = \substr($this->buffer, $this->offset);
+
+        return (string) $string;
+    }
+
+    /**
+     * Gets a byte at a specific position in the buffer.
+     *
+     * If the position is invalid the method will return false.
+     *
+     * If the $position parameter is set to null the value of $this->offset will be used.
+     *
+     * @param int|null $position
+     * @return string|bool
+     */
+    public function getByte($position = null)
+    {
+        $position = (int) ($position !== null ? $position : $this->offset);
+        if ($position >= $this->bufferLength &&
+            (!$this->increaseLength() || $position >= $this->bufferLength)
+        ) {
+            return false;
+        }
+
+        return $this->buffer[$position];
+    }
+
+    /**
+     * Returns a byte at a specific position, and set the offset to the next byte position.
+     *
+     * If the position is invalid the method will return false.
+     *
+     * If the $position parameter is set to null the value of $this->offset will be used.
+     *
+     * @param int|null $position
+     * @return string|bool
+     */
+    public function readByte($position = null)
+    {
+        if ($position !== null) {
+            $position = (int) $position;
+            // check if needed bytes are available in the current buffer
+            if (!($position >= $this->position && $position < $this->position + $this->bufferLength)) {
+                $this->reset($position);
+                $offset = $this->offset;
+            } else {
+                $offset = $position - $this->position;
+            }
+        } else {
+            $offset = $this->offset;
+        }
+
+        if ($offset >= $this->bufferLength &&
+            ((!$this->increaseLength()) || $offset >= $this->bufferLength)
+        ) {
+            return false;
+        }
+
+        $this->offset = $offset + 1;
+        return $this->buffer[$offset];
+    }
+
+    /**
+     * Read bytes from the current or a specific offset position and set the internal pointer to the next byte.
+     *
+     * If the position is invalid the method will return false.
+     *
+     * If the $position parameter is set to null the value of $this->offset will be used.
+     *
+     * @param int $length
+     * @param int|null $position
+     * @return string
+     */
+    public function readBytes($length, $position = null)
+    {
+        $length = (int) $length;
+        if ($position !== null) {
+            // check if needed bytes are available in the current buffer
+            if (!($position >= $this->position && $position < $this->position + $this->bufferLength)) {
+                $this->reset($position, $length);
+                $offset = $this->offset;
+            } else {
+                $offset = $position - $this->position;
+            }
+        } else {
+            $offset = $this->offset;
+        }
+
+        if (($offset + $length) > $this->bufferLength &&
+            ((!$this->increaseLength($length)) || ($offset + $length) > $this->bufferLength)
+        ) {
+            return false;
+        }
+
+        $bytes = \substr($this->buffer, $offset, $length);
+        $this->offset = $offset + $length;
+
+        return $bytes;
+    }
+
+    /**
+     * Read a line from the current position.
+     *
+     * @param int $length
+     * @return string|bool
+     */
+    public function readLine($length = 1024)
+    {
+        if ($this->ensureContent() === false) {
+            return false;
+        }
+
+        $line = '';
+        while ($this->ensureContent()) {
+            $char = $this->readByte();
+
+            if ($char === "\n") {
+                break;
+            }
+
+            if ($char === "\r") {
+                if ($this->getByte() === "\n") {
+                    $this->addOffset(1);
+                }
+                break;
+            }
+
+            $line .= $char;
+
+            if (\strlen($line) >= $length) {
+                break;
+            }
+        }
+
+        return $line;
+    }
+
+    /**
+     * Set the offset position in the current buffer.
+     *
+     * @param int $offset
+     */
+    public function setOffset($offset)
+    {
+        if ($offset > $this->bufferLength || $offset < 0) {
+            throw new \OutOfRangeException(
+                \sprintf('Offset (%s) out of range (length: %s)', $offset, $this->bufferLength)
+            );
+        }
+
+        $this->offset = (int) $offset;
+    }
+
+    /**
+     * Returns the current offset in the current buffer.
+     *
+     * @return int
+     */
+    public function getOffset()
+    {
+        return $this->offset;
+    }
+
+    /**
+     * Add an offset to the current offset.
+     *
+     * @param int $offset
+     */
+    public function addOffset($offset)
+    {
+        $this->setOffset($this->offset + $offset);
+    }
+
+    /**
+     * Make sure that there is at least one character beyond the current offset in the buffer.
+     *
+     * @return bool
+     */
+    public function ensureContent()
+    {
+        while ($this->offset >= $this->bufferLength) {
+            if (!$this->increaseLength()) {
+                return false;
+            }
+        }
+        return true;
+    }
+
+    /**
+     * Returns the stream.
+     *
+     * @return resource
+     */
+    public function getStream()
+    {
+        return $this->stream;
+    }
+
+    /**
+     * Gets the total available length.
+     *
+     * @return int
+     */
+    public function getTotalLength()
+    {
+        if ($this->totalLength === null) {
+            $stat = \fstat($this->stream);
+            $this->totalLength = $stat['size'];
+        }
+
+        return $this->totalLength;
+    }
+
+    /**
+     * Resets the buffer to a position and re-read the buffer with the given length.
+     *
+     * If the $pos parameter is negative the start buffer position will be the $pos'th position from
+     * the end of the file.
+     *
+     * If the $pos parameter is negative and the absolute value is bigger then the totalLength of
+     * the file $pos will set to zero.
+     *
+     * @param int|null $pos Start position of the new buffer
+     * @param int $length Length of the new buffer. Mustn't be negative
+     */
+    public function reset($pos = 0, $length = 200)
+    {
+        if ($pos === null) {
+            $pos = $this->position + $this->offset;
+        } elseif ($pos < 0) {
+            $pos = \max(0, $this->getTotalLength() + $pos);
+        }
+
+        \fseek($this->stream, $pos);
+
+        $this->position = $pos;
+        $this->buffer = $length > 0 ? \fread($this->stream, $length) : '';
+        $this->bufferLength = \strlen($this->buffer);
+        $this->offset = 0;
+
+        // If a stream wrapper is in use it is possible that
+        // length values > 8096 will be ignored, so use the
+        // increaseLength()-method to correct that behavior
+        if ($this->bufferLength < $length && $this->increaseLength($length - $this->bufferLength)) {
+            // increaseLength parameter is $minLength, so cut to have only the required bytes in the buffer
+            $this->buffer = \substr($this->buffer, 0, $length);
+            $this->bufferLength = \strlen($this->buffer);
+        }
+    }
+
+    /**
+     * Ensures bytes in the buffer with a specific length and location in the file.
+     *
+     * @param int $pos
+     * @param int $length
+     * @see reset()
+     */
+    public function ensure($pos, $length)
+    {
+        if ($pos >= $this->position
+            && $pos < ($this->position + $this->bufferLength)
+            && ($this->position + $this->bufferLength) >= ($pos + $length)
+        ) {
+            $this->offset = $pos - $this->position;
+        } else {
+            $this->reset($pos, $length);
+        }
+    }
+
+    /**
+     * Forcefully read more data into the buffer.
+     *
+     * @param int $minLength
+     * @return bool Returns false if the stream reaches the end
+     */
+    public function increaseLength($minLength = 100)
+    {
+        $length = \max($minLength, 100);
+
+        if (\feof($this->stream) || $this->getTotalLength() === $this->position + $this->bufferLength) {
+            return false;
+        }
+
+        $newLength = $this->bufferLength + $length;
+        do {
+            $this->buffer .= \fread($this->stream, $newLength - $this->bufferLength);
+            $this->bufferLength = \strlen($this->buffer);
+        } while (($this->bufferLength !== $newLength) && !\feof($this->stream));
+
+        return true;
+    }
+}

plugins/55/dw2pdf/vendor/setasign/fpdi/src/PdfParser/Tokenizer.php

@@ -0,0 +1,161 @@
+<?php
+/**
+ * This file is part of FPDI
+ *
+ * @package   setasign\Fpdi
+ * @copyright Copyright (c) 2020 Setasign GmbH & Co. KG (https://www.setasign.com)
+ * @license   http://opensource.org/licenses/mit-license The MIT License
+ */
+
+namespace setasign\Fpdi\PdfParser;
+
+/**
+ * A tokenizer class.
+ *
+ * @package setasign\Fpdi\PdfParser
+ */
+class Tokenizer
+{
+    /**
+     * @var StreamReader
+     */
+    protected $streamReader;
+
+    /**
+     * A token stack.
+     *
+     * @var string[]
+     */
+    protected $stack = [];
+
+    /**
+     * Tokenizer constructor.
+     *
+     * @param StreamReader $streamReader
+     */
+    public function __construct(StreamReader $streamReader)
+    {
+        $this->streamReader = $streamReader;
+    }
+
+    /**
+     * Get the stream reader instance.
+     *
+     * @return StreamReader
+     */
+    public function getStreamReader()
+    {
+        return $this->streamReader;
+    }
+
+    /**
+     * Clear the token stack.
+     */
+    public function clearStack()
+    {
+        $this->stack = [];
+    }
+
+    /**
+     * Push a token onto the stack.
+     *
+     * @param string $token
+     */
+    public function pushStack($token)
+    {
+        $this->stack[] = $token;
+    }
+
+    /**
+     * Get next token.
+     *
+     * @return bool|string
+     */
+    public function getNextToken()
+    {
+        $token = \array_pop($this->stack);
+        if ($token !== null) {
+            return $token;
+        }
+
+        if (($byte = $this->streamReader->readByte()) === false) {
+            return false;
+        }
+
+        if ($byte === "\x20" ||
+            $byte === "\x0A" ||
+            $byte === "\x0D" ||
+            $byte === "\x0C" ||
+            $byte === "\x09" ||
+            $byte === "\x00"
+        ) {
+            if ($this->leapWhiteSpaces() === false) {
+                return false;
+            }
+            $byte = $this->streamReader->readByte();
+        }
+
+        switch ($byte) {
+            case '/':
+            case '[':
+            case ']':
+            case '(':
+            case ')':
+            case '{':
+            case '}':
+            case '<':
+            case '>':
+                return $byte;
+            case '%':
+                $this->streamReader->readLine();
+                return $this->getNextToken();
+        }
+
+        /* This way is faster than checking single bytes.
+         */
+        $bufferOffset = $this->streamReader->getOffset();
+        do {
+            $lastBuffer = $this->streamReader->getBuffer(false);
+            $pos = \strcspn(
+                $lastBuffer,
+                "\x00\x09\x0A\x0C\x0D\x20()<>[]{}/%",
+                $bufferOffset
+            );
+        } while (
+            // Break the loop if a delimiter or white space char is matched
+            // in the current buffer or increase the buffers length
+            $lastBuffer !== false &&
+            (
+                $bufferOffset + $pos === \strlen($lastBuffer) &&
+                $this->streamReader->increaseLength()
+            )
+        );
+
+        $result = \substr($lastBuffer, $bufferOffset - 1, $pos + 1);
+        $this->streamReader->setOffset($bufferOffset + $pos);
+
+        return $result;
+    }
+
+    /**
+     * Leap white spaces.
+     *
+     * @return boolean
+     */
+    public function leapWhiteSpaces()
+    {
+        do {
+            if (!$this->streamReader->ensureContent()) {
+                return false;
+            }
+
+            $buffer = $this->streamReader->getBuffer(false);
+            $matches = \strspn($buffer, "\x20\x0A\x0C\x0D\x09\x00", $this->streamReader->getOffset());
+            if ($matches > 0) {
+                $this->streamReader->addOffset($matches);
+            }
+        } while ($this->streamReader->getOffset() >= $this->streamReader->getBufferLength());
+
+        return true;
+    }
+}

plugins/55/dw2pdf/vendor/setasign/fpdi/src/PdfParser/Type/PdfArray.php

@@ -0,0 +1,85 @@
+<?php
+/**
+ * This file is part of FPDI
+ *
+ * @package   setasign\Fpdi
+ * @copyright Copyright (c) 2020 Setasign GmbH & Co. KG (https://www.setasign.com)
+ * @license   http://opensource.org/licenses/mit-license The MIT License
+ */
+
+namespace setasign\Fpdi\PdfParser\Type;
+
+use setasign\Fpdi\PdfParser\PdfParser;
+use setasign\Fpdi\PdfParser\Tokenizer;
+
+/**
+ * Class representing a PDF array object
+ *
+ * @package setasign\Fpdi\PdfParser\Type
+ * @property array $value The value of the PDF type.
+ */
+class PdfArray extends PdfType
+{
+    /**
+     * Parses an array of the passed tokenizer and parser.
+     *
+     * @param Tokenizer $tokenizer
+     * @param PdfParser $parser
+     * @return bool|self
+     * @throws PdfTypeException
+     */
+    public static function parse(Tokenizer $tokenizer, PdfParser $parser)
+    {
+        $result = [];
+
+        // Recurse into this function until we reach the end of the array.
+        while (($token = $tokenizer->getNextToken()) !== ']') {
+            if ($token === false || ($value = $parser->readValue($token)) === false) {
+                return false;
+            }
+
+            $result[] = $value;
+        }
+
+        $v = new self;
+        $v->value = $result;
+
+        return $v;
+    }
+
+    /**
+     * Helper method to create an instance.
+     *
+     * @param PdfType[] $values
+     * @return self
+     */
+    public static function create(array $values = [])
+    {
+        $v = new self;
+        $v->value = $values;
+
+        return $v;
+    }
+
+    /**
+     * Ensures that the passed array is a PdfArray instance with a (optional) specific size.
+     *
+     * @param mixed $array
+     * @param null|int $size
+     * @return self
+     * @throws PdfTypeException
+     */
+    public static function ensure($array, $size = null)
+    {
+        $result = PdfType::ensureType(self::class, $array, 'Array value expected.');
+
+        if ($size !== null && \count($array->value) !== $size) {
+            throw new PdfTypeException(
+                \sprintf('Array with %s entries expected.', $size),
+                PdfTypeException::INVALID_DATA_SIZE
+            );
+        }
+
+        return $result;
+    }
+}

plugins/55/dw2pdf/vendor/setasign/fpdi/src/PdfParser/Type/PdfBoolean.php

@@ -0,0 +1,43 @@
+<?php
+/**
+ * This file is part of FPDI
+ *
+ * @package   setasign\Fpdi
+ * @copyright Copyright (c) 2020 Setasign GmbH & Co. KG (https://www.setasign.com)
+ * @license   http://opensource.org/licenses/mit-license The MIT License
+ */
+
+namespace setasign\Fpdi\PdfParser\Type;
+
+/**
+ * Class representing a boolean PDF object
+ *
+ * @package setasign\Fpdi\PdfParser\Type
+ */
+class PdfBoolean extends PdfType
+{
+    /**
+     * Helper method to create an instance.
+     *
+     * @param bool $value
+     * @return self
+     */
+    public static function create($value)
+    {
+        $v = new self;
+        $v->value = (boolean) $value;
+        return $v;
+    }
+
+    /**
+     * Ensures that the passed value is a PdfBoolean instance.
+     *
+     * @param mixed $value
+     * @return self
+     * @throws PdfTypeException
+     */
+    public static function ensure($value)
+    {
+        return PdfType::ensureType(self::class, $value, 'Boolean value expected.');
+    }
+}

plugins/55/dw2pdf/vendor/setasign/fpdi/src/PdfParser/Type/PdfDictionary.php

@@ -0,0 +1,135 @@
+<?php
+/**
+ * This file is part of FPDI
+ *
+ * @package   setasign\Fpdi
+ * @copyright Copyright (c) 2020 Setasign GmbH & Co. KG (https://www.setasign.com)
+ * @license   http://opensource.org/licenses/mit-license The MIT License
+ */
+
+namespace setasign\Fpdi\PdfParser\Type;
+
+use setasign\Fpdi\PdfParser\PdfParser;
+use setasign\Fpdi\PdfParser\StreamReader;
+use setasign\Fpdi\PdfParser\Tokenizer;
+
+/**
+ * Class representing a PDF dictionary object
+ *
+ * @package setasign\Fpdi\PdfParser\Type
+ */
+class PdfDictionary extends PdfType
+{
+    /**
+     * Parses a dictionary of the passed tokenizer, stream-reader and parser.
+     *
+     * @param Tokenizer $tokenizer
+     * @param StreamReader $streamReader
+     * @param PdfParser $parser
+     * @return bool|self
+     * @throws PdfTypeException
+     */
+    public static function parse(Tokenizer $tokenizer, StreamReader $streamReader, PdfParser $parser)
+    {
+        $entries = [];
+
+        while (true) {
+            $token = $tokenizer->getNextToken();
+            if ($token === '>' && $streamReader->getByte() === '>') {
+                $streamReader->addOffset(1);
+                break;
+            }
+
+            $key = $parser->readValue($token);
+            if ($key === false) {
+                return false;
+            }
+
+            // ensure the first value to be a Name object
+            if (!($key instanceof PdfName)) {
+                $lastToken = null;
+                // ignore all other entries and search for the closing brackets
+                while (($token = $tokenizer->getNextToken()) !== '>' && $token !== false && $lastToken !== '>') {
+                    $lastToken = $token;
+                }
+
+                if ($token === false) {
+                    return false;
+                }
+
+                break;
+            }
+
+
+            $value = $parser->readValue();
+            if ($value === false) {
+                return false;
+            }
+
+            if ($value instanceof PdfNull) {
+                continue;
+            }
+
+            // catch missing value
+            if ($value instanceof PdfToken && $value->value === '>' && $streamReader->getByte() === '>') {
+                $streamReader->addOffset(1);
+                break;
+            }
+
+            $entries[$key->value] = $value;
+        }
+
+        $v = new self;
+        $v->value = $entries;
+
+        return $v;
+    }
+
+    /**
+     * Helper method to create an instance.
+     *
+     * @param PdfType[] $entries The keys are the name entries of the dictionary.
+     * @return self
+     */
+    public static function create(array $entries = [])
+    {
+        $v = new self;
+        $v->value = $entries;
+
+        return $v;
+    }
+
+    /**
+     * Get a value by its key from a dictionary or a default value.
+     *
+     * @param mixed $dictionary
+     * @param string $key
+     * @param PdfType|mixed|null $default
+     * @return PdfNull|PdfType
+     * @throws PdfTypeException
+     */
+    public static function get($dictionary, $key, PdfType $default = null)
+    {
+        $dictionary = self::ensure($dictionary);
+
+        if (isset($dictionary->value[$key])) {
+            return $dictionary->value[$key];
+        }
+
+        return $default === null
+            ? new PdfNull()
+            : $default;
+    }
+
+    /**
+     * Ensures that the passed value is a PdfDictionary instance.
+     *
+     * @param mixed $dictionary
+     * @return self
+     * @throws PdfTypeException
+     */
+    public static function ensure($dictionary)
+    {
+        return PdfType::ensureType(self::class, $dictionary, 'Dictionary value expected.');
+    }
+}

plugins/55/dw2pdf/vendor/setasign/fpdi/src/PdfParser/Type/PdfHexString.php

@@ -0,0 +1,82 @@
+<?php
+/**
+ * This file is part of FPDI
+ *
+ * @package   setasign\Fpdi
+ * @copyright Copyright (c) 2020 Setasign GmbH & Co. KG (https://www.setasign.com)
+ * @license   http://opensource.org/licenses/mit-license The MIT License
+ */
+
+namespace setasign\Fpdi\PdfParser\Type;
+
+use setasign\Fpdi\PdfParser\StreamReader;
+
+/**
+ * Class representing a hexadecimal encoded PDF string object
+ *
+ * @package setasign\Fpdi\PdfParser\Type
+ */
+class PdfHexString extends PdfType
+{
+    /**
+     * Parses a hexadecimal string object from the stream reader.
+     *
+     * @param StreamReader $streamReader
+     * @return bool|self
+     */
+    public static function parse(StreamReader $streamReader)
+    {
+        $bufferOffset = $streamReader->getOffset();
+
+        /**
+         * @var string $buffer
+         * @var int $pos
+         */
+        while (true) {
+            $buffer = $streamReader->getBuffer(false);
+            $pos = \strpos($buffer, '>', $bufferOffset);
+            if ($pos === false) {
+                if (!$streamReader->increaseLength()) {
+                    return false;
+                }
+                continue;
+            }
+
+            break;
+        }
+
+        $result = \substr($buffer, $bufferOffset, $pos - $bufferOffset);
+        $streamReader->setOffset($pos + 1);
+
+        $v = new self;
+        $v->value = $result;
+
+        return $v;
+    }
+
+    /**
+     * Helper method to create an instance.
+     *
+     * @param string $string The hex encoded string.
+     * @return self
+     */
+    public static function create($string)
+    {
+        $v = new self;
+        $v->value = $string;
+
+        return $v;
+    }
+
+    /**
+     * Ensures that the passed value is a PdfHexString instance.
+     *
+     * @param mixed $hexString
+     * @return self
+     * @throws PdfTypeException
+     */
+    public static function ensure($hexString)
+    {
+        return PdfType::ensureType(self::class, $hexString, 'Hex string value expected.');
+    }
+}

plugins/55/dw2pdf/vendor/setasign/fpdi/src/PdfParser/Type/PdfIndirectObject.php

@@ -0,0 +1,104 @@
+<?php
+/**
+ * This file is part of FPDI
+ *
+ * @package   setasign\Fpdi
+ * @copyright Copyright (c) 2020 Setasign GmbH & Co. KG (https://www.setasign.com)
+ * @license   http://opensource.org/licenses/mit-license The MIT License
+ */
+
+namespace setasign\Fpdi\PdfParser\Type;
+
+use setasign\Fpdi\PdfParser\PdfParser;
+use setasign\Fpdi\PdfParser\StreamReader;
+use setasign\Fpdi\PdfParser\Tokenizer;
+
+/**
+ * Class representing an indirect object
+ *
+ * @package setasign\Fpdi\PdfParser\Type
+ */
+class PdfIndirectObject extends PdfType
+{
+    /**
+     * Parses an indirect object from a tokenizer, parser and stream-reader.
+     *
+     * @param int $objectNumberToken
+     * @param int $objectGenerationNumberToken
+     * @param PdfParser $parser
+     * @param Tokenizer $tokenizer
+     * @param StreamReader $reader
+     * @return bool|self
+     * @throws PdfTypeException
+     */
+    public static function parse(
+        $objectNumberToken,
+        $objectGenerationNumberToken,
+        PdfParser $parser,
+        Tokenizer $tokenizer,
+        StreamReader $reader
+    ) {
+        $value = $parser->readValue();
+        if ($value === false) {
+            return false;
+        }
+
+        $nextToken = $tokenizer->getNextToken();
+        if ($nextToken === 'stream') {
+            $value = PdfStream::parse($value, $reader, $parser);
+        } elseif ($nextToken !== false) {
+            $tokenizer->pushStack($nextToken);
+        }
+
+        $v = new self;
+        $v->objectNumber = (int) $objectNumberToken;
+        $v->generationNumber = (int) $objectGenerationNumberToken;
+        $v->value = $value;
+
+        return $v;
+    }
+
+    /**
+     * Helper method to create an instance.
+     *
+     * @param int $objectNumber
+     * @param int $generationNumber
+     * @param PdfType $value
+     * @return self
+     */
+    public static function create($objectNumber, $generationNumber, PdfType $value)
+    {
+        $v = new self;
+        $v->objectNumber = (int) $objectNumber;
+        $v->generationNumber = (int) $generationNumber;
+        $v->value = $value;
+
+        return $v;
+    }
+
+    /**
+     * Ensures that the passed value is a PdfIndirectObject instance.
+     *
+     * @param mixed $indirectObject
+     * @return self
+     * @throws PdfTypeException
+     */
+    public static function ensure($indirectObject)
+    {
+        return PdfType::ensureType(self::class, $indirectObject, 'Indirect object expected.');
+    }
+
+    /**
+     * The object number.
+     *
+     * @var int
+     */
+    public $objectNumber;
+
+    /**
+     * The generation number.
+     *
+     * @var int
+     */
+    public $generationNumber;
+}

plugins/55/dw2pdf/vendor/setasign/fpdi/src/PdfParser/Type/PdfIndirectObjectReference.php

@@ -0,0 +1,53 @@
+<?php
+/**
+ * This file is part of FPDI
+ *
+ * @package   setasign\Fpdi
+ * @copyright Copyright (c) 2020 Setasign GmbH & Co. KG (https://www.setasign.com)
+ * @license   http://opensource.org/licenses/mit-license The MIT License
+ */
+
+namespace setasign\Fpdi\PdfParser\Type;
+
+/**
+ * Class representing an indirect object reference
+ *
+ * @package setasign\Fpdi\PdfParser\Type
+ */
+class PdfIndirectObjectReference extends PdfType
+{
+    /**
+     * Helper method to create an instance.
+     *
+     * @param int $objectNumber
+     * @param int $generationNumber
+     * @return self
+     */
+    public static function create($objectNumber, $generationNumber)
+    {
+        $v = new self;
+        $v->value = (int) $objectNumber;
+        $v->generationNumber = (int) $generationNumber;
+
+        return $v;
+    }
+
+    /**
+     * Ensures that the passed value is a PdfIndirectObject instance.
+     *
+     * @param mixed $value
+     * @return self
+     * @throws PdfTypeException
+     */
+    public static function ensure($value)
+    {
+        return PdfType::ensureType(self::class, $value, 'Indirect reference value expected.');
+    }
+
+    /**
+     * The generation number.
+     *
+     * @var int
+     */
+    public $generationNumber;
+}

plugins/55/dw2pdf/vendor/setasign/fpdi/src/PdfParser/Type/PdfName.php

@@ -0,0 +1,82 @@
+<?php
+/**
+ * This file is part of FPDI
+ *
+ * @package   setasign\Fpdi
+ * @copyright Copyright (c) 2020 Setasign GmbH & Co. KG (https://www.setasign.com)
+ * @license   http://opensource.org/licenses/mit-license The MIT License
+ */
+
+namespace setasign\Fpdi\PdfParser\Type;
+
+use setasign\Fpdi\PdfParser\StreamReader;
+use setasign\Fpdi\PdfParser\Tokenizer;
+
+/**
+ * Class representing a PDF name object
+ *
+ * @package setasign\Fpdi\PdfParser\Type
+ */
+class PdfName extends PdfType
+{
+    /**
+     * Parses a name object from the passed tokenizer and stream-reader.
+     *
+     * @param Tokenizer $tokenizer
+     * @param StreamReader $streamReader
+     * @return self
+     */
+    public static function parse(Tokenizer $tokenizer, StreamReader $streamReader)
+    {
+        $v = new self;
+        if (\strspn($streamReader->getByte(), "\x00\x09\x0A\x0C\x0D\x20()<>[]{}/%") === 0) {
+            $v->value = (string) $tokenizer->getNextToken();
+            return $v;
+        }
+
+        $v->value = '';
+        return $v;
+    }
+
+    /**
+     * Unescapes a name string.
+     *
+     * @param string $value
+     * @return string
+     */
+    static public function unescape($value)
+    {
+        if (strpos($value, '#') === false)
+            return $value;
+
+        return preg_replace_callback('/#([a-fA-F\d]{2})/', function($matches) {
+            return chr(hexdec($matches[1]));
+        }, $value);
+    }
+
+    /**
+     * Helper method to create an instance.
+     *
+     * @param string $string
+     * @return self
+     */
+    public static function create($string)
+    {
+        $v = new self;
+        $v->value = $string;
+
+        return $v;
+    }
+
+    /**
+     * Ensures that the passed value is a PdfName instance.
+     *
+     * @param mixed $name
+     * @return self
+     * @throws PdfTypeException
+     */
+    public static function ensure($name)
+    {
+        return PdfType::ensureType(self::class, $name, 'Name value expected.');
+    }
+}

plugins/55/dw2pdf/vendor/setasign/fpdi/src/PdfParser/Type/PdfNull.php

@@ -0,0 +1,20 @@
+<?php
+/**
+ * This file is part of FPDI
+ *
+ * @package   setasign\Fpdi
+ * @copyright Copyright (c) 2020 Setasign GmbH & Co. KG (https://www.setasign.com)
+ * @license   http://opensource.org/licenses/mit-license The MIT License
+ */
+
+namespace setasign\Fpdi\PdfParser\Type;
+
+/**
+ * Class representing a PDF null object
+ *
+ * @package setasign\Fpdi\PdfParser\Type
+ */
+class PdfNull extends PdfType
+{
+    // empty body
+}

plugins/55/dw2pdf/vendor/setasign/fpdi/src/PdfParser/Type/PdfNumeric.php

@@ -0,0 +1,44 @@
+<?php
+/**
+ * This file is part of FPDI
+ *
+ * @package   setasign\Fpdi
+ * @copyright Copyright (c) 2020 Setasign GmbH & Co. KG (https://www.setasign.com)
+ * @license   http://opensource.org/licenses/mit-license The MIT License
+ */
+
+namespace setasign\Fpdi\PdfParser\Type;
+
+/**
+ * Class representing a numeric PDF object
+ *
+ * @package setasign\Fpdi\PdfParser\Type
+ */
+class PdfNumeric extends PdfType
+{
+    /**
+     * Helper method to create an instance.
+     *
+     * @param int|float $value
+     * @return PdfNumeric
+     */
+    public static function create($value)
+    {
+        $v = new self;
+        $v->value = $value + 0;
+
+        return $v;
+    }
+
+    /**
+     * Ensures that the passed value is a PdfNumeric instance.
+     *
+     * @param mixed $value
+     * @return self
+     * @throws PdfTypeException
+     */
+    public static function ensure($value)
+    {
+        return PdfType::ensureType(self::class, $value, 'Numeric value expected.');
+    }
+}

plugins/55/dw2pdf/vendor/setasign/fpdi/src/PdfParser/Type/PdfStream.php

@@ -0,0 +1,327 @@
+<?php
+/**
+ * This file is part of FPDI
+ *
+ * @package   setasign\Fpdi
+ * @copyright Copyright (c) 2020 Setasign GmbH & Co. KG (https://www.setasign.com)
+ * @license   http://opensource.org/licenses/mit-license The MIT License
+ */
+
+namespace setasign\Fpdi\PdfParser\Type;
+
+use setasign\Fpdi\PdfParser\CrossReference\CrossReferenceException;
+use setasign\Fpdi\PdfParser\Filter\Ascii85;
+use setasign\Fpdi\PdfParser\Filter\AsciiHex;
+use setasign\Fpdi\PdfParser\Filter\FilterException;
+use setasign\Fpdi\PdfParser\Filter\Flate;
+use setasign\Fpdi\PdfParser\Filter\Lzw;
+use setasign\Fpdi\PdfParser\PdfParser;
+use setasign\Fpdi\PdfParser\PdfParserException;
+use setasign\Fpdi\PdfParser\StreamReader;
+use setasign\FpdiPdfParser\PdfParser\Filter\Predictor;
+
+/**
+ * Class representing a PDF stream object
+ *
+ * @package setasign\Fpdi\PdfParser\Type
+ */
+class PdfStream extends PdfType
+{
+    /**
+     * Parses a stream from a stream reader.
+     *
+     * @param PdfDictionary $dictionary
+     * @param StreamReader $reader
+     * @param PdfParser $parser Optional to keep backwards compatibility
+     * @return self
+     * @throws PdfTypeException
+     */
+    public static function parse(PdfDictionary $dictionary, StreamReader $reader, PdfParser $parser = null)
+    {
+        $v = new self;
+        $v->value = $dictionary;
+        $v->reader = $reader;
+        $v->parser = $parser;
+
+        $offset = $reader->getOffset();
+
+        // Find the first "newline"
+        while (($firstByte = $reader->getByte($offset)) !== false) {
+            if ($firstByte !== "\n" && $firstByte !== "\r") {
+                $offset++;
+            } else {
+                break;
+            }
+        }
+
+        if (false === $firstByte) {
+            throw new PdfTypeException(
+                'Unable to parse stream data. No newline after the stream keyword found.',
+                PdfTypeException::NO_NEWLINE_AFTER_STREAM_KEYWORD
+            );
+        }
+
+        $sndByte = $reader->getByte($offset + 1);
+        if ($firstByte === "\n" || $firstByte === "\r") {
+            $offset++;
+        }
+
+        if ($sndByte === "\n" && $firstByte !== "\n") {
+            $offset++;
+        }
+
+        $reader->setOffset($offset);
+        // let's only save the byte-offset and read the stream only when needed
+        $v->stream = $reader->getPosition() + $reader->getOffset();
+
+        return $v;
+    }
+
+    /**
+     * Helper method to create an instance.
+     *
+     * @param PdfDictionary $dictionary
+     * @param string $stream
+     * @return self
+     */
+    public static function create(PdfDictionary $dictionary, $stream)
+    {
+        $v = new self;
+        $v->value = $dictionary;
+        $v->stream = (string) $stream;
+
+        return $v;
+    }
+
+    /**
+     * Ensures that the passed value is a PdfStream instance.
+     *
+     * @param mixed $stream
+     * @return self
+     * @throws PdfTypeException
+     */
+    public static function ensure($stream)
+    {
+        return PdfType::ensureType(self::class, $stream, 'Stream value expected.');
+    }
+
+    /**
+     * The stream or its byte-offset position.
+     *
+     * @var int|string
+     */
+    protected $stream;
+
+    /**
+     * The stream reader instance.
+     *
+     * @var StreamReader
+     */
+    protected $reader;
+
+    /**
+     * The PDF parser instance.
+     *
+     * @var PdfParser
+     */
+    protected $parser;
+
+    /**
+     * Get the stream data.
+     *
+     * @param bool $cache Whether cache the stream data or not.
+     * @return bool|string
+     * @throws PdfTypeException
+     * @throws CrossReferenceException
+     * @throws PdfParserException
+     */
+    public function getStream($cache = false)
+    {
+        if (\is_int($this->stream)) {
+            $length = PdfDictionary::get($this->value, 'Length');
+            if ($this->parser !== null) {
+                $length = PdfType::resolve($length, $this->parser);
+            }
+
+            if (!($length instanceof PdfNumeric) || $length->value === 0) {
+                $this->reader->reset($this->stream, 100000);
+                $buffer = $this->extractStream();
+            } else {
+                $this->reader->reset($this->stream, $length->value);
+                $buffer = $this->reader->getBuffer(false);
+                if ($this->parser !== null) {
+                    $this->reader->reset($this->stream + strlen($buffer));
+                    $this->parser->getTokenizer()->clearStack();
+                    $token = $this->parser->readValue();
+                    if ($token === false || !($token instanceof PdfToken) || $token->value !== 'endstream') {
+                        $this->reader->reset($this->stream, 100000);
+                        $buffer = $this->extractStream();
+                        $this->reader->reset($this->stream + strlen($buffer));
+                    }
+                }
+            }
+
+            if ($cache === false) {
+                return $buffer;
+            }
+
+            $this->stream = $buffer;
+            $this->reader = null;
+        }
+
+        return $this->stream;
+    }
+
+    /**
+     * Extract the stream "manually".
+     *
+     * @return string
+     * @throws PdfTypeException
+     */
+    protected function extractStream()
+    {
+        while (true) {
+            $buffer = $this->reader->getBuffer(false);
+            $length = \strpos($buffer, 'endstream');
+            if ($length === false) {
+                if (!$this->reader->increaseLength(100000)) {
+                    throw new PdfTypeException('Cannot extract stream.');
+                }
+                continue;
+            }
+            break;
+        }
+
+        $buffer = \substr($buffer, 0, $length);
+        $lastByte = \substr($buffer, -1);
+
+        /* Check for EOL marker =
+         *   CARRIAGE RETURN (\r) and a LINE FEED (\n) or just a LINE FEED (\n},
+         *   and not by a CARRIAGE RETURN (\r) alone
+         */
+        if ($lastByte === "\n") {
+            $buffer = \substr($buffer, 0, -1);
+
+            $lastByte = \substr($buffer, -1);
+            if ($lastByte === "\r") {
+                $buffer = \substr($buffer, 0, -1);
+            }
+        }
+
+        // There are streams in the wild, which have only white signs in them but need to be parsed manually due
+        // to a problem encountered before (e.g. Length === 0). We should set them to empty streams to avoid problems
+        // in further processing (e.g. applying of filters).
+        if (trim($buffer) === '') {
+            $buffer = '';
+        }
+
+        return $buffer;
+    }
+
+    /**
+     * Get the unfiltered stream data.
+     *
+     * @return string
+     * @throws FilterException
+     * @throws PdfParserException
+     */
+    public function getUnfilteredStream()
+    {
+        $stream = $this->getStream();
+        $filters = PdfDictionary::get($this->value, 'Filter');
+        if ($filters instanceof PdfNull) {
+            return $stream;
+        }
+
+        if ($filters instanceof PdfArray) {
+            $filters = $filters->value;
+        } else {
+            $filters = [$filters];
+        }
+
+        $decodeParams = PdfDictionary::get($this->value, 'DecodeParms');
+        if ($decodeParams instanceof PdfArray) {
+            $decodeParams = $decodeParams->value;
+        } else {
+            $decodeParams = [$decodeParams];
+        }
+
+        foreach ($filters as $key => $filter) {
+            if (!($filter instanceof PdfName)) {
+                continue;
+            }
+
+            $decodeParam = null;
+            if (isset($decodeParams[$key])) {
+                $decodeParam = ($decodeParams[$key] instanceof PdfDictionary ? $decodeParams[$key] : null);
+            }
+
+            switch ($filter->value) {
+                case 'FlateDecode':
+                case 'Fl':
+                case 'LZWDecode':
+                case 'LZW':
+                    if (\strpos($filter->value, 'LZW') === 0) {
+                        $filterObject = new Lzw();
+                    } else {
+                        $filterObject = new Flate();
+                    }
+
+                    $stream = $filterObject->decode($stream);
+
+                    if ($decodeParam instanceof PdfDictionary) {
+                        $predictor = PdfDictionary::get($decodeParam, 'Predictor', PdfNumeric::create(1));
+                        if ($predictor->value !== 1) {
+                            if (!\class_exists(Predictor::class)) {
+                                throw new PdfParserException(
+                                    'This PDF document makes use of features which are only implemented in the ' .
+                                    'commercial "FPDI PDF-Parser" add-on (see https://www.setasign.com/fpdi-pdf-' .
+                                    'parser).',
+                                    PdfParserException::IMPLEMENTED_IN_FPDI_PDF_PARSER
+                                );
+                            }
+
+                            $colors = PdfDictionary::get($decodeParam, 'Colors', PdfNumeric::create(1));
+                            $bitsPerComponent = PdfDictionary::get(
+                                $decodeParam,
+                                'BitsPerComponent',
+                                PdfNumeric::create(8)
+                            );
+
+                            $columns = PdfDictionary::get($decodeParam, 'Columns', PdfNumeric::create(1));
+
+                            $filterObject = new Predictor(
+                                $predictor->value,
+                                $colors->value,
+                                $bitsPerComponent->value,
+                                $columns->value
+                            );
+
+                            $stream = $filterObject->decode($stream);
+                        }
+                    }
+
+                    break;
+                case 'ASCII85Decode':
+                case 'A85':
+                    $filterObject = new Ascii85();
+                    $stream = $filterObject->decode($stream);
+                    break;
+
+                case 'ASCIIHexDecode':
+                case 'AHx':
+                    $filterObject = new AsciiHex();
+                    $stream = $filterObject->decode($stream);
+                    break;
+
+                default:
+                    throw new FilterException(
+                        \sprintf('Unsupported filter "%s".', $filter->value),
+                        FilterException::UNSUPPORTED_FILTER
+                    );
+            }
+        }
+
+        return $stream;
+    }
+}

plugins/55/dw2pdf/vendor/setasign/fpdi/src/PdfParser/Type/PdfString.php

@@ -0,0 +1,172 @@
+<?php
+/**
+ * This file is part of FPDI
+ *
+ * @package   setasign\Fpdi
+ * @copyright Copyright (c) 2020 Setasign GmbH & Co. KG (https://www.setasign.com)
+ * @license   http://opensource.org/licenses/mit-license The MIT License
+ */
+
+namespace setasign\Fpdi\PdfParser\Type;
+
+use setasign\Fpdi\PdfParser\StreamReader;
+
+/**
+ * Class representing a PDF string object
+ *
+ * @package setasign\Fpdi\PdfParser\Type
+ */
+class PdfString extends PdfType
+{
+    /**
+     * Parses a string object from the stream reader.
+     *
+     * @param StreamReader $streamReader
+     * @return self
+     */
+    public static function parse(StreamReader $streamReader)
+    {
+        $pos = $startPos = $streamReader->getOffset();
+        $openBrackets = 1;
+        do {
+            $buffer = $streamReader->getBuffer(false);
+            for ($length = \strlen($buffer); $openBrackets !== 0 && $pos < $length; $pos++) {
+                switch ($buffer[$pos]) {
+                    case '(':
+                        $openBrackets++;
+                        break;
+                    case ')':
+                        $openBrackets--;
+                        break;
+                    case '\\':
+                        $pos++;
+                }
+            }
+        } while ($openBrackets !== 0 && $streamReader->increaseLength());
+
+        $result = \substr($buffer, $startPos, $openBrackets + $pos - $startPos - 1);
+        $streamReader->setOffset($pos);
+
+        $v = new self;
+        $v->value = $result;
+
+        return $v;
+    }
+
+    /**
+     * Helper method to create an instance.
+     *
+     * @param string $value The string needs to be escaped accordingly.
+     * @return self
+     */
+    public static function create($value)
+    {
+        $v = new self;
+        $v->value = $value;
+
+        return $v;
+    }
+
+    /**
+     * Ensures that the passed value is a PdfString instance.
+     *
+     * @param mixed $string
+     * @return self
+     * @throws PdfTypeException
+     */
+    public static function ensure($string)
+    {
+        return PdfType::ensureType(self::class, $string, 'String value expected.');
+    }
+
+    /**
+     * Unescapes escaped sequences in a PDF string according to the PDF specification.
+     *
+     * @param string $s
+     * @return string
+     */
+    public static function unescape($s)
+    {
+        $out = '';
+        /** @noinspection ForeachInvariantsInspection */
+        for ($count = 0, $n = \strlen($s); $count < $n; $count++) {
+            if ($s[$count] !== '\\') {
+                $out .= $s[$count];
+            } else {
+                // A backslash at the end of the string - ignore it
+                if ($count === ($n - 1)) {
+                    break;
+                }
+
+                switch ($s[++$count]) {
+                    case ')':
+                    case '(':
+                    case '\\':
+                        $out .= $s[$count];
+                        break;
+
+                    case 'f':
+                        $out .= "\x0C";
+                        break;
+
+                    case 'b':
+                        $out .= "\x08";
+                        break;
+
+                    case 't':
+                        $out .= "\x09";
+                        break;
+
+                    case 'r':
+                        $out .= "\x0D";
+                        break;
+
+                    case 'n':
+                        $out .= "\x0A";
+                        break;
+
+                    case "\r":
+                        if ($count !== $n - 1 && $s[$count + 1] === "\n") {
+                            $count++;
+                        }
+                        break;
+
+                    case "\n":
+                        break;
+
+                    default:
+                        $actualChar = \ord($s[$count]);
+                        // ascii 48 = number 0
+                        // ascii 57 = number 9
+                        if ($actualChar >= 48 &&
+                            $actualChar <= 57) {
+                            $oct = '' . $s[$count];
+
+                            /** @noinspection NotOptimalIfConditionsInspection */
+                            if ($count + 1 < $n &&
+                                \ord($s[$count + 1]) >= 48 &&
+                                \ord($s[$count + 1]) <= 57
+                            ) {
+                                $count++;
+                                $oct .= $s[$count];
+
+                                /** @noinspection NotOptimalIfConditionsInspection */
+                                if ($count + 1 < $n &&
+                                    \ord($s[$count + 1]) >= 48 &&
+                                    \ord($s[$count + 1]) <= 57
+                                ) {
+                                    $oct .= $s[++$count];
+                                }
+                            }
+
+                            $out .= \chr(\octdec($oct));
+                        } else {
+                            // If the character is not one of those defined, the backslash is ignored
+                            $out .= $s[$count];
+                        }
+                }
+            }
+        }
+        return $out;
+    }
+}

plugins/55/dw2pdf/vendor/setasign/fpdi/src/PdfParser/Type/PdfToken.php

@@ -0,0 +1,44 @@
+<?php
+/**
+ * This file is part of FPDI
+ *
+ * @package   setasign\Fpdi
+ * @copyright Copyright (c) 2020 Setasign GmbH & Co. KG (https://www.setasign.com)
+ * @license   http://opensource.org/licenses/mit-license The MIT License
+ */
+
+namespace setasign\Fpdi\PdfParser\Type;
+
+/**
+ * Class representing PDF token object
+ *
+ * @package setasign\Fpdi\PdfParser\Type
+ */
+class PdfToken extends PdfType
+{
+    /**
+     * Helper method to create an instance.
+     *
+     * @param string $token
+     * @return self
+     */
+    public static function create($token)
+    {
+        $v = new self;
+        $v->value = $token;
+
+        return $v;
+    }
+
+    /**
+     * Ensures that the passed value is a PdfToken instance.
+     *
+     * @param mixed $token
+     * @return self
+     * @throws PdfTypeException
+     */
+    public static function ensure($token)
+    {
+        return PdfType::ensureType(self::class, $token, 'Token value expected.');
+    }
+}

plugins/55/dw2pdf/vendor/setasign/fpdi/src/PdfParser/Type/PdfType.php

@@ -0,0 +1,79 @@
+<?php
+/**
+ * This file is part of FPDI
+ *
+ * @package   setasign\Fpdi
+ * @copyright Copyright (c) 2020 Setasign GmbH & Co. KG (https://www.setasign.com)
+ * @license   http://opensource.org/licenses/mit-license The MIT License
+ */
+
+namespace setasign\Fpdi\PdfParser\Type;
+
+use setasign\Fpdi\PdfParser\CrossReference\CrossReferenceException;
+use setasign\Fpdi\PdfParser\PdfParser;
+use setasign\Fpdi\PdfParser\PdfParserException;
+
+/**
+ * A class defining a PDF data type
+ *
+ * @package setasign\Fpdi\PdfParser\Type
+ */
+class PdfType
+{
+    /**
+     * Resolves a PdfType value to its value.
+     *
+     * This method is used to evaluate indirect and direct object references until a final value is reached.
+     *
+     * @param PdfType $value
+     * @param PdfParser $parser
+     * @param bool $stopAtIndirectObject
+     * @return PdfType
+     * @throws CrossReferenceException
+     * @throws PdfParserException
+     */
+    public static function resolve(PdfType $value, PdfParser $parser, $stopAtIndirectObject = false)
+    {
+        if ($value instanceof PdfIndirectObject) {
+            if ($stopAtIndirectObject === true) {
+                return $value;
+            }
+
+            return self::resolve($value->value, $parser, $stopAtIndirectObject);
+        }
+
+        if ($value instanceof PdfIndirectObjectReference) {
+            return self::resolve($parser->getIndirectObject($value->value), $parser, $stopAtIndirectObject);
+        }
+
+        return $value;
+    }
+
+    /**
+     * Ensure that a value is an instance of a specific PDF type.
+     *
+     * @param string $type
+     * @param PdfType $value
+     * @param string $errorMessage
+     * @return mixed
+     * @throws PdfTypeException
+     */
+    protected static function ensureType($type, $value, $errorMessage)
+    {
+        if (!($value instanceof $type)) {
+            throw new PdfTypeException(
+                $errorMessage,
+                PdfTypeException::INVALID_DATA_TYPE
+            );
+        }
+
+        return $value;
+    }
+
+    /**
+     * The value of the PDF type.
+     *
+     * @var mixed
+     */
+    public $value;
+}

plugins/55/dw2pdf/vendor/setasign/fpdi/src/PdfParser/Type/PdfTypeException.php

@@ -0,0 +1,25 @@
+<?php
+/**
+ * This file is part of FPDI
+ *
+ * @package   setasign\Fpdi
+ * @copyright Copyright (c) 2020 Setasign GmbH & Co. KG (https://www.setasign.com)
+ * @license   http://opensource.org/licenses/mit-license The MIT License
+ */
+
+namespace setasign\Fpdi\PdfParser\Type;
+
+use setasign\Fpdi\PdfParser\PdfParserException;
+
+/**
+ * Exception class for pdf type classes
+ *
+ * @package setasign\Fpdi\PdfParser\Type
+ */
+class PdfTypeException extends PdfParserException
+{
+    /**
+     * @var int
+     */
+    const NO_NEWLINE_AFTER_STREAM_KEYWORD = 0x0601;
+}

plugins/55/dw2pdf/vendor/setasign/fpdi/src/PdfReader/DataStructure/Rectangle.php

@@ -0,0 +1,174 @@
+<?php
+/**
+ * This file is part of FPDI
+ *
+ * @package   setasign\Fpdi
+ * @copyright Copyright (c) 2020 Setasign GmbH & Co. KG (https://www.setasign.com)
+ * @license   http://opensource.org/licenses/mit-license The MIT License
+ */
+
+namespace setasign\Fpdi\PdfReader\DataStructure;
+
+use setasign\Fpdi\PdfParser\CrossReference\CrossReferenceException;
+use setasign\Fpdi\PdfParser\PdfParser;
+use setasign\Fpdi\PdfParser\PdfParserException;
+use setasign\Fpdi\PdfParser\Type\PdfArray;
+use setasign\Fpdi\PdfParser\Type\PdfNumeric;
+use setasign\Fpdi\PdfParser\Type\PdfType;
+use setasign\Fpdi\PdfParser\Type\PdfTypeException;
+
+/**
+ * Class representing a rectangle
+ *
+ * @package setasign\Fpdi\PdfReader\DataStructure
+ */
+class Rectangle
+{
+    /**
+     * @var int|float
+     */
+    protected $llx;
+
+    /**
+     * @var int|float
+     */
+    protected $lly;
+
+    /**
+     * @var int|float
+     */
+    protected $urx;
+
+    /**
+     * @var int|float
+     */
+    protected $ury;
+
+    /**
+     * Create a rectangle instance by a PdfArray.
+     *
+     * @param PdfArray|mixed $array
+     * @param PdfParser $parser
+     * @return Rectangle
+     * @throws PdfTypeException
+     * @throws CrossReferenceException
+     * @throws PdfParserException
+     */
+    public static function byPdfArray($array, PdfParser $parser)
+    {
+        $array = PdfArray::ensure(PdfType::resolve($array, $parser), 4)->value;
+        $ax = PdfNumeric::ensure(PdfType::resolve($array[0], $parser))->value;
+        $ay = PdfNumeric::ensure(PdfType::resolve($array[1], $parser))->value;
+        $bx = PdfNumeric::ensure(PdfType::resolve($array[2], $parser))->value;
+        $by = PdfNumeric::ensure(PdfType::resolve($array[3], $parser))->value;
+
+        return new self($ax, $ay, $bx, $by);
+    }
+
+    /**
+     * Rectangle constructor.
+     *
+     * @param float|int $ax
+     * @param float|int $ay
+     * @param float|int $bx
+     * @param float|int $by
+     */
+    public function __construct($ax, $ay, $bx, $by)
+    {
+        $this->llx = \min($ax, $bx);
+        $this->lly = \min($ay, $by);
+        $this->urx = \max($ax, $bx);
+        $this->ury = \max($ay, $by);
+    }
+
+    /**
+     * Get the width of the rectangle.
+     *
+     * @return float|int
+     */
+    public function getWidth()
+    {
+        return $this->urx - $this->llx;
+    }
+
+    /**
+     * Get the height of the rectangle.
+     *
+     * @return float|int
+     */
+    public function getHeight()
+    {
+        return $this->ury - $this->lly;
+    }
+
+    /**
+     * Get the lower left abscissa.
+     *
+     * @return float|int
+     */
+    public function getLlx()
+    {
+        return $this->llx;
+    }
+
+    /**
+     * Get the lower left ordinate.
+     *
+     * @return float|int
+     */
+    public function getLly()
+    {
+        return $this->lly;
+    }
+
+    /**
+     * Get the upper right abscissa.
+     *
+     * @return float|int
+     */
+    public function getUrx()
+    {
+        return $this->urx;
+    }
+
+    /**
+     * Get the upper right ordinate.
+     *
+     * @return float|int
+     */
+    public function getUry()
+    {
+        return $this->ury;
+    }
+
+    /**
+     * Get the rectangle as an array.
+     *
+     * @return array
+     */
+    public function toArray()
+    {
+        return [
+            $this->llx,
+            $this->lly,
+            $this->urx,
+            $this->ury
+        ];
+    }
+
+    /**
+     * Get the rectangle as a PdfArray.
+     *
+     * @return PdfArray
+     */
+    public function toPdfArray()
+    {
+        $array = new PdfArray();
+        $array->value[] = PdfNumeric::create($this->llx);
+        $array->value[] = PdfNumeric::create($this->lly);
+        $array->value[] = PdfNumeric::create($this->urx);
+        $array->value[] = PdfNumeric::create($this->ury);
+
+        return $array;
+    }
+}

plugins/55/dw2pdf/vendor/setasign/fpdi/src/PdfReader/Page.php

@@ -0,0 +1,272 @@
+<?php
+/**
+ * This file is part of FPDI
+ *
+ * @package   setasign\Fpdi
+ * @copyright Copyright (c) 2020 Setasign GmbH & Co. KG (https://www.setasign.com)
+ * @license   http://opensource.org/licenses/mit-license The MIT License
+ */
+
+namespace setasign\Fpdi\PdfReader;
+
+use setasign\Fpdi\PdfParser\Filter\FilterException;
+use setasign\Fpdi\PdfParser\PdfParser;
+use setasign\Fpdi\PdfParser\PdfParserException;
+use setasign\Fpdi\PdfParser\Type\PdfArray;
+use setasign\Fpdi\PdfParser\Type\PdfDictionary;
+use setasign\Fpdi\PdfParser\Type\PdfIndirectObject;
+use setasign\Fpdi\PdfParser\Type\PdfNull;
+use setasign\Fpdi\PdfParser\Type\PdfNumeric;
+use setasign\Fpdi\PdfParser\Type\PdfStream;
+use setasign\Fpdi\PdfParser\Type\PdfType;
+use setasign\Fpdi\PdfParser\Type\PdfTypeException;
+use setasign\Fpdi\PdfReader\DataStructure\Rectangle;
+use setasign\Fpdi\PdfParser\CrossReference\CrossReferenceException;
+
+/**
+ * Class representing a page of a PDF document
+ *
+ * @package setasign\Fpdi\PdfReader
+ */
+class Page
+{
+    /**
+     * @var PdfIndirectObject
+     */
+    protected $pageObject;
+
+    /**
+     * @var PdfDictionary
+     */
+    protected $pageDictionary;
+
+    /**
+     * @var PdfParser
+     */
+    protected $parser;
+
+    /**
+     * Inherited attributes
+     *
+     * @var null|array
+     */
+    protected $inheritedAttributes;
+
+    /**
+     * Page constructor.
+     *
+     * @param PdfIndirectObject $page
+     * @param PdfParser $parser
+     */
+    public function __construct(PdfIndirectObject $page, PdfParser $parser)
+    {
+        $this->pageObject = $page;
+        $this->parser = $parser;
+    }
+
+    /**
+     * Get the indirect object of this page.
+     *
+     * @return PdfIndirectObject
+     */
+    public function getPageObject()
+    {
+        return $this->pageObject;
+    }
+
+    /**
+     * Get the dictionary of this page.
+     *
+     * @return PdfDictionary
+     * @throws PdfParserException
+     * @throws PdfTypeException
+     * @throws CrossReferenceException
+     */
+    public function getPageDictionary()
+    {
+        if (null === $this->pageDictionary) {
+            $this->pageDictionary = PdfDictionary::ensure(PdfType::resolve($this->getPageObject(), $this->parser));
+        }
+
+        return $this->pageDictionary;
+    }
+
+    /**
+     * Get a page attribute.
+     *
+     * @param string $name
+     * @param bool $inherited
+     * @return PdfType|null
+     * @throws PdfParserException
+     * @throws PdfTypeException
+     * @throws CrossReferenceException
+     */
+    public function getAttribute($name, $inherited = true)
+    {
+        $dict = $this->getPageDictionary();
+
+        if (isset($dict->value[$name])) {
+            return $dict->value[$name];
+        }
+
+        $inheritedKeys = ['Resources', 'MediaBox', 'CropBox', 'Rotate'];
+        if ($inherited && \in_array($name, $inheritedKeys, true)) {
+            if ($this->inheritedAttributes === null) {
+                $this->inheritedAttributes = [];
+                $inheritedKeys = \array_filter($inheritedKeys, function ($key) use ($dict) {
+                    return !isset($dict->value[$key]);
+                });
+
+                if (\count($inheritedKeys) > 0) {
+                    $parentDict = PdfType::resolve(PdfDictionary::get($dict, 'Parent'), $this->parser);
+                    while ($parentDict instanceof PdfDictionary) {
+                        foreach ($inheritedKeys as $index => $key) {
+                            if (isset($parentDict->value[$key])) {
+                                $this->inheritedAttributes[$key] = $parentDict->value[$key];
+                                unset($inheritedKeys[$index]);
+                            }
+                        }
+
+                        /** @noinspection NotOptimalIfConditionsInspection */
+                        if (isset($parentDict->value['Parent']) && \count($inheritedKeys) > 0) {
+                            $parentDict = PdfType::resolve(PdfDictionary::get($parentDict, 'Parent'), $this->parser);
+                        } else {
+                            break;
+                        }
+                    }
+                }
+            }
+
+            if (isset($this->inheritedAttributes[$name])) {
+                return $this->inheritedAttributes[$name];
+            }
+        }
+
+        return null;
+    }
+
+    /**
+     * Get the rotation value.
+     *
+     * @return int
+     * @throws PdfParserException
+     * @throws PdfTypeException
+     * @throws CrossReferenceException
+     */
+    public function getRotation()
+    {
+        $rotation = $this->getAttribute('Rotate');
+        if (null === $rotation) {
+            return 0;
+        }
+
+        $rotation = PdfNumeric::ensure(PdfType::resolve($rotation, $this->parser))->value % 360;
+
+        if ($rotation < 0) {
+            $rotation += 360;
+        }
+
+        return $rotation;
+    }
+
+    /**
+     * Get a boundary of this page.
+     *
+     * @param string $box
+     * @param bool $fallback
+     * @return bool|Rectangle
+     * @throws PdfParserException
+     * @throws PdfTypeException
+     * @throws CrossReferenceException
+     * @see PageBoundaries
+     */
+    public function getBoundary($box = PageBoundaries::CROP_BOX, $fallback = true)
+    {
+        $value = $this->getAttribute($box);
+
+        if ($value !== null) {
+            return Rectangle::byPdfArray($value, $this->parser);
+        }
+
+        if ($fallback === false) {
+            return false;
+        }
+
+        switch ($box) {
+            case PageBoundaries::BLEED_BOX:
+            case PageBoundaries::TRIM_BOX:
+            case PageBoundaries::ART_BOX:
+                return $this->getBoundary(PageBoundaries::CROP_BOX, true);
+            case PageBoundaries::CROP_BOX:
+                return $this->getBoundary(PageBoundaries::MEDIA_BOX, true);
+        }
+
+        return false;
+    }
+
+    /**
+     * Get the width and height of this page.
+     *
+     * @param string $box
+     * @param bool $fallback
+     * @return array|bool
+     * @throws PdfParserException
+     * @throws PdfTypeException
+     * @throws CrossReferenceException
+     */
+    public function getWidthAndHeight($box = PageBoundaries::CROP_BOX, $fallback = true)
+    {
+        $boundary = $this->getBoundary($box, $fallback);
+        if ($boundary === false) {
+            return false;
+        }
+
+        $rotation = $this->getRotation();
+        $interchange = ($rotation / 90) % 2;
+
+        return [
+            $interchange ? $boundary->getHeight() : $boundary->getWidth(),
+            $interchange ? $boundary->getWidth() : $boundary->getHeight()
+        ];
+    }
+
+    /**
+     * Get the raw content stream.
+     *
+     * @return string
+     * @throws PdfReaderException
+     * @throws PdfTypeException
+     * @throws FilterException
+     * @throws PdfParserException
+     */
+    public function getContentStream()
+    {
+        $dict = $this->getPageDictionary();
+        $contents = PdfType::resolve(PdfDictionary::get($dict, 'Contents'), $this->parser);
+        if ($contents instanceof PdfNull) {
+            return '';
+        }
+
+        if ($contents instanceof PdfArray) {
+            $result = [];
+            foreach ($contents->value as $content) {
+                $content = PdfType::resolve($content, $this->parser);
+                if (!($content instanceof PdfStream)) {
+                    continue;
+                }
+                $result[] = $content->getUnfilteredStream();
+            }
+
+            return \implode("\n", $result);
+        }
+
+        if ($contents instanceof PdfStream) {
+            return $contents->getUnfilteredStream();
+        }
+
+        throw new PdfReaderException(
+            'Array or stream expected.',
+            PdfReaderException::UNEXPECTED_DATA_TYPE
+        );
+    }
+}

plugins/55/dw2pdf/vendor/setasign/fpdi/src/PdfReader/PageBoundaries.php

@@ -0,0 +1,95 @@
+<?php
+/**
+ * This file is part of FPDI
+ *
+ * @package   setasign\Fpdi
+ * @copyright Copyright (c) 2020 Setasign GmbH & Co. KG (https://www.setasign.com)
+ * @license   http://opensource.org/licenses/mit-license The MIT License
+ */
+
+namespace setasign\Fpdi\PdfReader;
+
+/**
+ * An abstract class for page boundary constants and some helper methods
+ *
+ * @package setasign\Fpdi\PdfReader
+ */
+abstract class PageBoundaries
+{
+    /**
+     * MediaBox
+     *
+     * The media box defines the boundaries of the physical medium on which the page is to be printed.
+     *
+     * @see PDF 32000-1:2008 - 14.11.2 Page Boundaries
+     * @var string
+     */
+    const MEDIA_BOX = 'MediaBox';
+
+    /**
+     * CropBox
+     *
+     * The crop box defines the region to which the contents of the page shall be clipped (cropped) when displayed or
+     * printed.
+     *
+     * @see PDF 32000-1:2008 - 14.11.2 Page Boundaries
+     * @var string
+     */
+    const CROP_BOX = 'CropBox';
+
+    /**
+     * BleedBox
+     *
+     * The bleed box defines the region to which the contents of the page shall be clipped when output in a
+     * production environment.
+     *
+     * @see PDF 32000-1:2008 - 14.11.2 Page Boundaries
+     * @var string
+     */
+    const BLEED_BOX = 'BleedBox';
+
+    /**
+     * TrimBox
+     *
+     * The trim box defines the intended dimensions of the finished page after trimming.
+     *
+     * @see PDF 32000-1:2008 - 14.11.2 Page Boundaries
+     * @var string
+     */
+    const TRIM_BOX = 'TrimBox';
+
+    /**
+     * ArtBox
+     *
+     * The art box defines the extent of the page’s meaningful content (including potential white space) as intended
+     * by the page’s creator.
+     *
+     * @see PDF 32000-1:2008 - 14.11.2 Page Boundaries
+     * @var string
+     */
+    const ART_BOX = 'ArtBox';
+
+    /**
+     * All page boundaries
+     *
+     * @var array
+     */
+    public static $all = array(
+        self::MEDIA_BOX,
+        self::CROP_BOX,
+        self::BLEED_BOX,
+        self::TRIM_BOX,
+        self::ART_BOX
+    );
+
+    /**
+     * Checks if a name is a valid page boundary name.
+     *
+     * @param string $name The boundary name
+     * @return boolean A boolean value whether the name is valid or not.
+     */
+    public static function isValidName($name)
+    {
+        return \in_array($name, self::$all, true);
+    }
+}

plugins/55/dw2pdf/vendor/setasign/fpdi/src/PdfReader/PdfReader.php

@@ -0,0 +1,234 @@
+<?php
+/**
+ * This file is part of FPDI
+ *
+ * @package   setasign\Fpdi
+ * @copyright Copyright (c) 2020 Setasign GmbH & Co. KG (https://www.setasign.com)
+ * @license   http://opensource.org/licenses/mit-license The MIT License
+ */
+
+namespace setasign\Fpdi\PdfReader;
+
+use setasign\Fpdi\PdfParser\CrossReference\CrossReferenceException;
+use setasign\Fpdi\PdfParser\PdfParser;
+use setasign\Fpdi\PdfParser\PdfParserException;
+use setasign\Fpdi\PdfParser\Type\PdfArray;
+use setasign\Fpdi\PdfParser\Type\PdfDictionary;
+use setasign\Fpdi\PdfParser\Type\PdfIndirectObject;
+use setasign\Fpdi\PdfParser\Type\PdfIndirectObjectReference;
+use setasign\Fpdi\PdfParser\Type\PdfNumeric;
+use setasign\Fpdi\PdfParser\Type\PdfType;
+use setasign\Fpdi\PdfParser\Type\PdfTypeException;
+
+/**
+ * A PDF reader class
+ *
+ * @package setasign\Fpdi\PdfReader
+ */
+class PdfReader
+{
+    /**
+     * @var PdfParser
+     */
+    protected $parser;
+
+    /**
+     * @var int
+     */
+    protected $pageCount;
+
+    /**
+     * Indirect objects of resolved pages.
+     *
+     * @var PdfIndirectObjectReference[]|PdfIndirectObject[]
+     */
+    protected $pages = [];
+
+    /**
+     * PdfReader constructor.
+     *
+     * @param PdfParser $parser
+     */
+    public function __construct(PdfParser $parser)
+    {
+        $this->parser = $parser;
+    }
+
+    /**
+     * PdfReader destructor.
+     */
+    public function __destruct()
+    {
+        if ($this->parser !== null) {
+            $this->parser->cleanUp();
+        }
+    }
+
+    /**
+     * Get the pdf parser instance.
+     *
+     * @return PdfParser
+     */
+    public function getParser()
+    {
+        return $this->parser;
+    }
+
+    /**
+     * Get the PDF version.
+     *
+     * @return string
+     * @throws PdfParserException
+     */
+    public function getPdfVersion()
+    {
+        return \implode('.', $this->parser->getPdfVersion());
+    }
+
+    /**
+     * Get the page count.
+     *
+     * @return int
+     * @throws PdfTypeException
+     * @throws CrossReferenceException
+     * @throws PdfParserException
+     */
+    public function getPageCount()
+    {
+        if ($this->pageCount === null) {
+            $catalog = $this->parser->getCatalog();
+
+            $pages = PdfType::resolve(PdfDictionary::get($catalog, 'Pages'), $this->parser);
+            $count = PdfType::resolve(PdfDictionary::get($pages, 'Count'), $this->parser);
+
+            $this->pageCount = PdfNumeric::ensure($count)->value;
+        }
+
+        return $this->pageCount;
+    }
+
+    /**
+     * Get a page instance.
+     *
+     * @param int $pageNumber
+     * @return Page
+     * @throws PdfTypeException
+     * @throws CrossReferenceException
+     * @throws PdfParserException
+     * @throws \InvalidArgumentException
+     */
+    public function getPage($pageNumber)
+    {
+        if (!\is_numeric($pageNumber)) {
+            throw new \InvalidArgumentException(
+                'Page number needs to be a number.'
+            );
+        }
+
+        if ($pageNumber < 1 || $pageNumber > $this->getPageCount()) {
+            throw new \InvalidArgumentException(
+                \sprintf(
+                    'Page number "%s" out of available page range (1 - %s)',
+                    $pageNumber,
+                    $this->getPageCount()
+                )
+            );
+        }
+
+        $this->readPages();
+
+        $page = $this->pages[$pageNumber - 1];
+
+        if ($page instanceof PdfIndirectObjectReference) {
+            $readPages = function ($kids) use (&$readPages) {
+                $kids = PdfArray::ensure($kids);
+
+                /** @noinspection LoopWhichDoesNotLoopInspection */
+                foreach ($kids->value as $reference) {
+                    $reference = PdfIndirectObjectReference::ensure($reference);
+                    $object = $this->parser->getIndirectObject($reference->value);
+                    $type = PdfDictionary::get($object->value, 'Type');
+
+                    if ($type->value === 'Pages') {
+                        return $readPages(PdfDictionary::get($object->value, 'Kids'));
+                    }
+
+                    return $object;
+                }
+
+                throw new PdfReaderException(
+                    'Kids array cannot be empty.',
+                    PdfReaderException::KIDS_EMPTY
+                );
+            };
+
+            $page = $this->parser->getIndirectObject($page->value);
+            $dict = PdfType::resolve($page, $this->parser);
+            $type = PdfDictionary::get($dict, 'Type');
+
+            if ($type->value === 'Pages') {
+                $kids = PdfType::resolve(PdfDictionary::get($dict, 'Kids'), $this->parser);
+                try {
+                    $page = $this->pages[$pageNumber - 1] = $readPages($kids);
+                } catch (PdfReaderException $e) {
+                    if ($e->getCode() !== PdfReaderException::KIDS_EMPTY) {
+                        throw $e;
+                    }
+
+                    // let's reset the pages array and read all page objects
+                    $this->pages = [];
+                    $this->readPages(true);
+                    $page = $this->pages[$pageNumber - 1];
+                }
+            } else {
+                $this->pages[$pageNumber - 1] = $page;
+            }
+        }
+
+        return new Page($page, $this->parser);
+    }
+
+    /**
+     * Walk the page tree and resolve all indirect objects of all pages.
+     *
+     * @param bool $readAll
+     * @throws CrossReferenceException
+     * @throws PdfParserException
+     * @throws PdfTypeException
+     */
+    protected function readPages($readAll = false)
+    {
+        if (\count($this->pages) > 0) {
+            return;
+        }
+
+        $readPages = function ($kids, $count) use (&$readPages, $readAll) {
+            $kids = PdfArray::ensure($kids);
+            $isLeaf = ($count->value === \count($kids->value));
+
+            foreach ($kids->value as $reference) {
+                $reference = PdfIndirectObjectReference::ensure($reference);
+
+                if (!$readAll && $isLeaf) {
+                    $this->pages[] = $reference;
+                    continue;
+                }
+
+                $object = $this->parser->getIndirectObject($reference->value);
+                $type = PdfDictionary::get($object->value, 'Type');
+
+                if ($type->value === 'Pages') {
+                    $readPages(PdfDictionary::get($object->value, 'Kids'), PdfDictionary::get($object->value, 'Count'));
+                } else {
+                    $this->pages[] = $object;
+                }
+            }
+        };
+
+        $catalog = $this->parser->getCatalog();
+        $pages = PdfType::resolve(PdfDictionary::get($catalog, 'Pages'), $this->parser);
+        $count = PdfType::resolve(PdfDictionary::get($pages, 'Count'), $this->parser);
+        $kids = PdfType::resolve(PdfDictionary::get($pages, 'Kids'), $this->parser);
+        $readPages($kids, $count);
+    }
+}

plugins/55/dw2pdf/vendor/setasign/fpdi/src/PdfReader/PdfReaderException.php

@@ -0,0 +1,35 @@
+<?php
+/**
+ * This file is part of FPDI
+ *
+ * @package   setasign\Fpdi
+ * @copyright Copyright (c) 2020 Setasign GmbH & Co. KG (https://www.setasign.com)
+ * @license   http://opensource.org/licenses/mit-license The MIT License
+ */
+
+namespace setasign\Fpdi\PdfReader;
+
+use setasign\Fpdi\FpdiException;
+
+/**
+ * Exception for the pdf reader class
+ *
+ * @package setasign\Fpdi\PdfReader
+ */
+class PdfReaderException extends FpdiException
+{
+    /**
+     * @var int
+     */
+    const KIDS_EMPTY = 0x0101;
+
+    /**
+     * @var int
+     */
+    const UNEXPECTED_DATA_TYPE = 0x0102;
+
+    /**
+     * @var int
+     */
+    const MISSING_DATA = 0x0103;
+}

plugins/55/dw2pdf/vendor/setasign/fpdi/src/Tcpdf/Fpdi.php

@@ -0,0 +1,266 @@
+<?php
+
+namespace setasign\Fpdi\Tcpdf;
+
+use setasign\Fpdi\FpdiTrait;
+use setasign\Fpdi\PdfParser\CrossReference\CrossReferenceException;
+use setasign\Fpdi\PdfParser\Filter\AsciiHex;
+use setasign\Fpdi\PdfParser\PdfParserException;
+use setasign\Fpdi\PdfParser\Type\PdfHexString;
+use setasign\Fpdi\PdfParser\Type\PdfIndirectObject;
+use setasign\Fpdi\PdfParser\Type\PdfNull;
+use setasign\Fpdi\PdfParser\Type\PdfNumeric;
+use setasign\Fpdi\PdfParser\Type\PdfStream;
+use setasign\Fpdi\PdfParser\Type\PdfString;
+use setasign\Fpdi\PdfParser\Type\PdfType;
+use setasign\Fpdi\PdfParser\Type\PdfTypeException;
+
+/**
+ * Class Fpdi
+ *
+ * This class let you import pages of existing PDF documents into a reusable structure for TCPDF.
+ *
+ * @package setasign\Fpdi
+ */
+class Fpdi extends \TCPDF
+{
+    use FpdiTrait {
+        writePdfType as fpdiWritePdfType;
+        useImportedPage as fpdiUseImportedPage;
+    }
+
+    /**
+     * FPDI version
+     *
+     * @string
+     */
+    const VERSION = '2.3.1';
+
+    /**
+     * A counter for template ids.
+     *
+     * @var int
+     */
+    protected $templateId = 0;
+
+    /**
+     * The currently used object number.
+     *
+     * @var int
+     */
+    protected $currentObjectNumber;
+
+    protected function _enddoc()
+    {
+        parent::_enddoc();
+        $this->cleanUp();
+    }
+
+    /**
+     * Get the next template id.
+     *
+     * @return int
+     */
+    protected function getNextTemplateId()
+    {
+        return $this->templateId++;
+    }
+
+    /**
+     * Draws an imported page onto the page or another template.
+     *
+     * Give only one of the size parameters (width, height) to calculate the other one automatically in view to the
+     * aspect ratio.
+     *
+     * @param mixed $tpl The template id
+     * @param float|int|array $x The abscissa of upper-left corner. Alternatively you could use an assoc array
+     *                           with the keys "x", "y", "width", "height", "adjustPageSize".
+     * @param float|int $y The ordinate of upper-left corner.
+     * @param float|int|null $width The width.
+     * @param float|int|null $height The height.
+     * @param bool $adjustPageSize
+     * @return array The size
+     * @see FpdiTrait::getTemplateSize()
+     */
+    public function useTemplate($tpl, $x = 0, $y = 0, $width = null, $height = null, $adjustPageSize = false)
+    {
+        return $this->useImportedPage($tpl, $x, $y, $width, $height, $adjustPageSize);
+    }
+
+    /**
+     * Draws an imported page onto the page.
+     *
+     * Give only one of the size parameters (width, height) to calculate the other one automatically in view to the
+     * aspect ratio.
+     *
+     * @param mixed $pageId The page id
+     * @param float|int|array $x The abscissa of upper-left corner. Alternatively you could use an assoc array
+     *                           with the keys "x", "y", "width", "height", "adjustPageSize".
+     * @param float|int $y The ordinate of upper-left corner.
+     * @param float|int|null $width The width.
+     * @param float|int|null $height The height.
+     * @param bool $adjustPageSize
+     * @return array The size.
+     * @see Fpdi::getTemplateSize()
+     */
+    public function useImportedPage($pageId, $x = 0, $y = 0, $width = null, $height = null, $adjustPageSize = false)
+    {
+        $size = $this->fpdiUseImportedPage($pageId, $x, $y, $width, $height, $adjustPageSize);
+        if ($this->inxobj) {
+            $importedPage = $this->importedPages[$pageId];
+            $this->xobjects[$this->xobjid]['importedPages'][$importedPage['id']] = $pageId;
+        }
+
+        return $size;
+    }
+
+    /**
+     * Get the size of an imported page.
+     *
+     * Give only one of the size parameters (width, height) to calculate the other one automatically in view to the
+     * aspect ratio.
+     *
+     * @param mixed $tpl The template id
+     * @param float|int|null $width The width.
+     * @param float|int|null $height The height.
+     * @return array|bool An array with following keys: width, height, 0 (=width), 1 (=height), orientation (L or P)
+     */
+    public function getTemplateSize($tpl, $width = null, $height = null)
+    {
+        return $this->getImportedPageSize($tpl, $width, $height);
+    }
+
+    /**
+     * @inheritdoc
+     */
+    protected function _getxobjectdict()
+    {
+        $out = parent::_getxobjectdict();
+
+        foreach ($this->importedPages as $key => $pageData) {
+            $out .= '/' . $pageData['id'] . ' ' . $pageData['objectNumber'] . ' 0 R ';
+        }
+
+        return $out;
+    }
+
+    /**
+     * @inheritdoc
+     * @throws CrossReferenceException
+     * @throws PdfParserException
+     */
+    protected function _putxobjects()
+    {
+        foreach ($this->importedPages as $key => $pageData) {
+            $this->currentObjectNumber = $this->_newobj();
+            $this->importedPages[$key]['objectNumber'] = $this->currentObjectNumber;
+            $this->currentReaderId = $pageData['readerId'];
+            $this->writePdfType($pageData['stream']);
+            $this->_put('endobj');
+        }
+
+        foreach (\array_keys($this->readers) as $readerId) {
+            $parser = $this->getPdfReader($readerId)->getParser();
+            $this->currentReaderId = $readerId;
+
+            while (($objectNumber = \array_pop($this->objectsToCopy[$readerId])) !== null) {
+                try {
+                    $object = $parser->getIndirectObject($objectNumber);
+
+                } catch (CrossReferenceException $e) {
+                    if ($e->getCode() === CrossReferenceException::OBJECT_NOT_FOUND) {
+                        $object = PdfIndirectObject::create($objectNumber, 0, new PdfNull());
+                    } else {
+                        throw $e;
+                    }
+                }
+
+                $this->writePdfType($object);
+            }
+        }
+
+        // let's prepare resources for imported pages in templates
+        foreach ($this->xobjects as $xObjectId => $data) {
+            if (!isset($data['importedPages'])) {
+                continue;
+            }
+
+            foreach ($data['importedPages'] as $id => $pageKey) {
+                $page = $this->importedPages[$pageKey];
+                $this->xobjects[$xObjectId]['xobjects'][$id] = ['n' => $page['objectNumber']];
+            }
+        }
+
+
+        parent::_putxobjects();
+        $this->currentObjectNumber = null;
+    }
+
+    /**
+     * Append content to the buffer of TCPDF.
+     *
+     * @param string $s
+     * @param bool $newLine
+     */
+    protected function _put($s, $newLine = true)
+    {
+        if ($newLine) {
+            $this->setBuffer($s . "\n");
+        } else {
+            $this->setBuffer($s);
+        }
+    }
+
+    /**
+     * Begin a new object and return the object number.
+     *
+     * @param int|string $objid Object ID (leave empty to get a new ID).
+     * @return int object number
+     */
+    protected function _newobj($objid = '')
+    {
+        $this->_out($this->_getobj($objid));
+        return $this->n;
+    }
+
+    /**
+     * Writes a PdfType object to the resulting buffer.
+     *
+     * @param PdfType $value
+     * @throws PdfTypeException
+     */
+    protected function writePdfType(PdfType $value)
+    {
+        if (!$this->encrypted) {
+            $this->fpdiWritePdfType($value);
+            return;
+        }
+
+        if ($value instanceof PdfString) {
+            $string = PdfString::unescape($value->value);
+            $string = $this->_encrypt_data($this->currentObjectNumber, $string);
+            $value->value = \TCPDF_STATIC::_escape($string);
+
+        } elseif ($value instanceof PdfHexString) {
+            $filter = new AsciiHex();
+            $string = $filter->decode($value->value);
+            $string = $this->_encrypt_data($this->currentObjectNumber, $string);
+            $value->value = $filter->encode($string, true);
+
+        } elseif ($value instanceof PdfStream) {
+            $stream = $value->getStream();
+            $stream = $this->_encrypt_data($this->currentObjectNumber, $stream);
+            $dictionary = $value->value;
+            $dictionary->value['Length'] = PdfNumeric::create(\strlen($stream));
+            $value = PdfStream::create($dictionary, $stream);
+
+        } elseif ($value instanceof PdfIndirectObject) {
+            /**
+             * @var $value PdfIndirectObject
+             */
+            $this->currentObjectNumber = $this->objectMap[$this->currentReaderId][$value->objectNumber];
+        }
+
+        $this->fpdiWritePdfType($value);
+    }
+}

plugins/55/dw2pdf/vendor/setasign/fpdi/src/TcpdfFpdi.php

@@ -0,0 +1,23 @@
+<?php
+/**
+ * This file is part of FPDI
+ *
+ * @package   setasign\Fpdi
+ * @copyright Copyright (c) 2020 Setasign GmbH & Co. KG (https://www.setasign.com)
+ * @license   http://opensource.org/licenses/mit-license The MIT License
+ */
+
+namespace setasign\Fpdi;
+
+/**
+ * Class TcpdfFpdi
+ *
+ * This class let you import pages of existing PDF documents into a reusable structure for TCPDF.
+ *
+ * @package setasign\Fpdi
+ * @deprecated Class was moved to \setasign\Fpdi\Tcpdf\Fpdi
+ */
+class TcpdfFpdi extends \setasign\Fpdi\Tcpdf\Fpdi
+{
+    // this class is moved to \setasign\Fpdi\Tcpdf\Fpdi
+}

plugins/55/dw2pdf/vendor/setasign/fpdi/src/Tfpdf/FpdfTpl.php

@@ -0,0 +1,24 @@
+<?php
+/**
+ * This file is part of FPDI
+ *
+ * @package   setasign\Fpdi
+ * @copyright Copyright (c) 2020 Setasign GmbH & Co. KG (https://www.setasign.com)
+ * @license   http://opensource.org/licenses/mit-license The MIT License
+ */
+
+namespace setasign\Fpdi\Tfpdf;
+
+use setasign\Fpdi\FpdfTplTrait;
+
+/**
+ * Class FpdfTpl
+ *
+ * We need to change some access levels and implement the setPageFormat() method to bring back compatibility to tFPDF.
+ *
+ * @package setasign\Fpdi\Tfpdf
+ */
+class FpdfTpl extends \tFPDF
+{
+    use FpdfTplTrait;
+}

plugins/55/dw2pdf/vendor/setasign/fpdi/src/Tfpdf/Fpdi.php

@@ -0,0 +1,156 @@
+<?php
+/**
+ * This file is part of FPDI
+ *
+ * @package   setasign\Fpdi
+ * @copyright Copyright (c) 2020 Setasign GmbH & Co. KG (https://www.setasign.com)
+ * @license   http://opensource.org/licenses/mit-license The MIT License
+ */
+
+namespace setasign\Fpdi\Tfpdf;
+
+use setasign\Fpdi\FpdiTrait;
+use setasign\Fpdi\PdfParser\CrossReference\CrossReferenceException;
+use setasign\Fpdi\PdfParser\PdfParserException;
+use setasign\Fpdi\PdfParser\Type\PdfIndirectObject;
+use setasign\Fpdi\PdfParser\Type\PdfNull;
+
+/**
+ * Class Fpdi
+ *
+ * This class let you import pages of existing PDF documents into a reusable structure for tFPDF.
+ *
+ * @package setasign\Fpdi
+ */
+class Fpdi extends FpdfTpl
+{
+    use FpdiTrait;
+
+    /**
+     * FPDI version
+     *
+     * @string
+     */
+    const VERSION = '2.3.1';
+
+    public function _enddoc()
+    {
+        parent::_enddoc();
+        $this->cleanUp();
+    }
+
+    /**
+     * Draws an imported page or a template onto the page or another template.
+     *
+     * Give only one of the size parameters (width, height) to calculate the other one automatically in view to the
+     * aspect ratio.
+     *
+     * @param mixed $tpl The template id
+     * @param float|int|array $x The abscissa of upper-left corner. Alternatively you could use an assoc array
+     *                           with the keys "x", "y", "width", "height", "adjustPageSize".
+     * @param float|int $y The ordinate of upper-left corner.
+     * @param float|int|null $width The width.
+     * @param float|int|null $height The height.
+     * @param bool $adjustPageSize
+     * @return array The size
+     * @see Fpdi::getTemplateSize()
+     */
+    public function useTemplate($tpl, $x = 0, $y = 0, $width = null, $height = null, $adjustPageSize = false)
+    {
+        if (isset($this->importedPages[$tpl])) {
+            $size = $this->useImportedPage($tpl, $x, $y, $width, $height, $adjustPageSize);
+            if ($this->currentTemplateId !== null) {
+                $this->templates[$this->currentTemplateId]['resources']['templates']['importedPages'][$tpl] = $tpl;
+            }
+            return $size;
+        }
+
+        return parent::useTemplate($tpl, $x, $y, $width, $height, $adjustPageSize);
+    }
+
+    /**
+     * Get the size of an imported page or template.
+     *
+     * Give only one of the size parameters (width, height) to calculate the other one automatically in view to the
+     * aspect ratio.
+     *
+     * @param mixed $tpl The template id
+     * @param float|int|null $width The width.
+     * @param float|int|null $height The height.
+     * @return array|bool An array with following keys: width, height, 0 (=width), 1 (=height), orientation (L or P)
+     */
+    public function getTemplateSize($tpl, $width = null, $height = null)
+    {
+        $size = parent::getTemplateSize($tpl, $width, $height);
+        if ($size === false) {
+            return $this->getImportedPageSize($tpl, $width, $height);
+        }
+
+        return $size;
+    }
+
+    /**
+     * @inheritdoc
+     * @throws CrossReferenceException
+     * @throws PdfParserException
+     */
+    public function _putimages()
+    {
+        $this->currentReaderId = null;
+        parent::_putimages();
+
+        foreach ($this->importedPages as $key => $pageData) {
+            $this->_newobj();
+            $this->importedPages[$key]['objectNumber'] = $this->n;
+            $this->currentReaderId = $pageData['readerId'];
+            $this->writePdfType($pageData['stream']);
+            $this->_put('endobj');
+        }
+
+        foreach (\array_keys($this->readers) as $readerId) {
+            $parser = $this->getPdfReader($readerId)->getParser();
+            $this->currentReaderId = $readerId;
+
+            while (($objectNumber = \array_pop($this->objectsToCopy[$readerId])) !== null) {
+                try {
+                    $object = $parser->getIndirectObject($objectNumber);
+
+                } catch (CrossReferenceException $e) {
+                    if ($e->getCode() === CrossReferenceException::OBJECT_NOT_FOUND) {
+                        $object = PdfIndirectObject::create($objectNumber, 0, new PdfNull());
+                    } else {
+                        throw $e;
+                    }
+                }
+
+                $this->writePdfType($object);
+            }
+        }
+
+        $this->currentReaderId = null;
+    }
+
+    /**
+     * @inheritdoc
+     */
+    protected function _putxobjectdict()
+    {
+        foreach ($this->importedPages as $key => $pageData) {
+            $this->_put('/' . $pageData['id'] . ' ' . $pageData['objectNumber'] . ' 0 R');
+        }
+
+        parent::_putxobjectdict();
+    }
+
+    /**
+     * @inheritdoc
+     */
+    protected function _put($s, $newLine = true)
+    {
+        if ($newLine) {
+            $this->buffer .= $s . "\n";
+        } else {
+            $this->buffer .= $s;
+        }
+    }
+}

plugins/55/dw2pdf/vendor/setasign/fpdi/src/autoload.php

@@ -0,0 +1,20 @@
+<?php
+/**
+ * This file is part of FPDI
+ *
+ * @package   setasign\Fpdi
+ * @copyright Copyright (c) 2020 Setasign GmbH & Co. KG (https://www.setasign.com)
+ * @license   http://opensource.org/licenses/mit-license The MIT License
+ */
+
+spl_autoload_register(function ($class) {
+    if (strpos($class, 'setasign\Fpdi\\') === 0) {
+        $filename = str_replace('\\', DIRECTORY_SEPARATOR, substr($class, 14)) . '.php';
+        $fullpath = __DIR__ . DIRECTORY_SEPARATOR . $filename;
+
+        if (file_exists($fullpath)) {
+            /** @noinspection PhpIncludeInspection */
+            require_once $fullpath;
+        }
+    }
+});