Merging upstream version 0.7.0.

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

.github/workflows/tests.yml

@@ -8,9 +8,14 @@ jobs:
     strategy:
       matrix:
         os: [ubuntu-latest, macos-latest, windows-latest]
-        python-version: ['3.7', '3.8', '3.9', '3.10', 'pypy-3.8']
+        python-version: ['3.11']
+        include:
+          - os: ubuntu-latest
+            python-version: '3.7'
+          - os: ubuntu-latest
+            python-version: 'pypy-3.8'
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3
       - uses: actions/setup-python@v2
         with:
           python-version: ${{ matrix.python-version }}

.gitignore

@@ -1,4 +1,5 @@
 /docs/_build
 /tests/results
+/dist/
 __pycache__
 .coverage

docs/changelog.rst

@@ -2,6 +2,41 @@ Changelog
 =========
 
 
+Version 0.7.0
+-------------
+
+Released on 2023-07-03.
+
+Dependencies:
+
+* Python 3.11 is supported and tested
+
+Bug fixes:
+
+* Fix size of fields for xref
+
+Backers and sponsors:
+
+* Castedo Ellerman
+* Spacinov
+* Kobalt
+* Grip Angebotssoftware
+* Crisp BV
+* Manuel Barkhau
+* SimonSoft
+* Menutech
+* KontextWork
+* NCC Group
+* René Fritz
+* TrainingSparkle
+* Healthchecks.io
+* Moritz Mahringer
+* Yanal-Yvez Fargialla
+* Synapsium
+* Piotr Horzycki
+* Hammerbacher
+
+
 Version 0.6.0
 -------------
 

pydyf/__init__.py

@@ -9,7 +9,7 @@ from codecs import BOM_UTF16_BE
 from hashlib import md5
 from math import ceil, log
 
-VERSION = __version__ = '0.6.0'
+VERSION = __version__ = '0.7.0'
 
 
 def _to_bytes(item):
@@ -549,11 +549,11 @@ class PDF:
                         object_.generation))
             xref.append((1, self.current_position, 0))
 
-            field2_size = ceil(log(self.current_position, 8))
+            field2_size = ceil(log(self.current_position + 1, 256))
             max_generation = max(
                 object_.generation for object_ in self.objects)
             field3_size = ceil(log(
-                max(max_generation, len(compressed_objects)), 8))
+                max(max_generation, len(compressed_objects)) + 1, 256))
             xref_lengths = (1, field2_size, field3_size)
             xref_stream = b''.join(
                 value.to_bytes(length, 'big')

pyproject.toml

@@ -23,6 +23,7 @@ classifiers = [
   'Programming Language :: Python :: 3.8',
   'Programming Language :: Python :: 3.9',
   'Programming Language :: Python :: 3.10',
+  'Programming Language :: Python :: 3.11',
   'Programming Language :: Python :: Implementation :: CPython',
   'Programming Language :: Python :: Implementation :: PyPy',
 ]