Version 1.27.11, 2022-05-02

What's Changed

Bug Fixes (BUG)

• Incorrectly issued xref warning/exception (#855)

Full Changelog: 1.27.10...1.27.11

Version 1.27.10, 2022-05-01

What's Changed

Robustness (ROB)

• Handle missing destinations in reader (#840)
• warn-only in readStringFromStream (#837)
• Fix corruption in startxref or xref table (#788 and #830)

Documentation (DOC)

• Project Governance (#799)
• History of PyPDF2
• PDF feature/version support (#816)
• More details on text parsing issues (#815)

Developer Experience (DEV)

• Add benchmark command to Makefile
• Ignore IronPython parts for code coverage (#826)

Maintenance (MAINT)

• Split pdf module (#836)
• Separated CCITTFax param parsing/decoding (#841)
• Update requirements files

Testing (TST)

• Use external repository for larger/more PDFs for testing (#820)
• Swap incorrect test names (#838)
• Add test for PdfFileReader and page properties (#835)
• Add tests for PyPDF2.generic (#831)
• Add tests for utils, form fields, PageRange (#827)
• Add test for ASCII85Decode (#825)
• Add test for FlateDecode (#823)
• Add test for filters.ASCIIHexDecode (#822)

Code Style (STY)

• Apply pre-commit (black, isort) + use snake_case variables (#832)
• Remove debug code (#828)
• Documentation, Variable names (#839)

New Contributors

• @pubpub-zz made their first contribution in #788

Full Changelog: 1.27.9...1.27.10

Version 1.27.9, 2022-04-24

What's Changed

A change I would like to highlight is the performance improvement for large PDF files (#808 by @dsk7) 🎉

New Features (ENH)

• Add papersizes (#800)
• Allow setting permission flags when encrypting (#803)
• Allow setting form field flags (#802)

Bug Fixes (BUG)

• TypeError in xmp._converter_date (#813)
• Improve spacing for text extraction (#806)
• Fix PDFDocEncoding Character Set (#809)

Robustness (ROB)

• Use null ID when encrypted but no ID given (#812)
• Handle recursion error (#804)

Documentation (DOC)

• CMaps (#811)
• The PDF Format + commit prefixes (#810)
• Add compression example (#792)

Developer Experience (DEV)

• Add Benchmark for Performance Testing (#781)

Maintenance (MAINT)

• Validate PDF magic byte in strict mode (#814)
• Make PdfFileMerger.addBookmark() behave life PdfFileWriters' (#339)
• Quadratic runtime while parsing reduced to linear (#808)

Testing (TST)

• Newlines in text extraction (#807)

New Contributors

• @dsk7 made their first contribution in #808
• @khalida made their first contribution in #339

Full Changelog: 1.27.8...1.27.9

Version 1.27.8, 2022-04-21

What's Changed

Bug Fixes (BUG)

• Use 1MB as offset for readNextEndLine (#321)
• 'PdfFileWriter' object has no attribute 'stream' (#787)

Robustness (ROB)

• Invalid float object; use 0 as fallback (#782)

Documentation (DOC)

• Robustness (#785)

New Contributors

• @akolpakov made their first contribution in #321

Full Changelog: 1.27.7...1.27.8

Version 1.27.7, 2022-04-19

What's Changed

Bug Fixes (BUG)

• Import exceptions from PyPDF2.errors in PyPDF2.utils (#780)

Code Style (STY)

• Naming in 'make_changelog.py'

Full Changelog: 1.27.6...1.27.7

Version 1.27.6, 2022-04-18

What changed

Deprecations (DEP)

• Remove support for Python 2.6 and older (#776)

New Features (ENH)

• Extract document permissions (#320)

Bug Fixes (BUG)

• Clip by trimBox when merging pages, which would otherwise be ignored (#240)
• Add overwriteWarnings parameter PdfFileMerger (#243)
• IndexError for getPage() of decryped file (#359)
• Handle cases where decodeParms is an ArrayObject (#405)
• Updated PDF fields don't show up when page is written (#412)
• Set Linked Form Value (#414)
• Fix zlib -5 error for corrupt files (#603)
• Fix reading more than last1K for EOF (#642)
• Acciental import

Robustness (ROB)

• Allow extra whitespace before "obj" in readObjectHeader (#567)

Documentation (DOC)

• Link to pdftoc in Sample_Code (#628)
• Working with annotations (#764)
• Structure history

Developer Experience (DEV)

• Add issue templates (#765)
• Add tool to generate changelog

Maintenance (MAINT)

• Use grouped constants instead of string literals (#745)
• Add error module (#768)
• Use decorators for @staticmethod (#775)
• Split long functions (#777)

Testing (TST)

• Run tests in CI once with -OO Flags (#770)
• Filling out forms (#771)
• Add tests for Writer (#772)
• Error cases (#773)
• Check Error messages (#769)
• Regression test for issue #88
• Regression test for issue #327

Code Style (STY)

• Make variable naming more consistent in tests

New Contributors

• @denis-osipov made their first contribution in #359
• @malthejorgensen made their first contribution in #567
• @forrestv made their first contribution in #240
• @andrecp made their first contribution in #243
• @jc275 made their first contribution in #405
• @rltpoa made their first contribution in #642
• @vb64 made their first contribution in #628
• @thijsbrouwers made their first contribution in #603
• @malvidin made their first contribution in #414
• @mwhit74 made their first contribution in #412

Full Changelog: 1.27.5...1.27.6

Version 1.27.5, 2022-04-15

Security (SEC)

• ContentStream_readInlineImage had potential infinite loop (#740)

Bug fixes (BUG)

• Fix merging encrypted files (#757)
• CCITTFaxDecode decodeParms can be an ArrayObject (#756)

Robustness improvements (ROBUST)

• title sometimes None (#744)

Documentation (DOC)

• Adjust short description of the package

Tests and Test setup (TST)

• Rewrite JS tests from unittest to pytest (#746)
• Increase Test coverage, mainly with filters (#756)
• Add test for inline images (#758)

Developer Experience Improvements (DEV)

• Remove unused Travis-CI configuration (#747)
• Show code coverage (#754, #755)
• Add mutmut (#760)

Miscellaneous

• STY: Closing file handles, explicit exports, ... (#743)

All changes: 1.27.4...1.27.5

Version 1.27.0

Features

• Add alpha channel support for png files in Script (#614)

Bug fixes (BUG)

• Fix formatWarning for filename without slash (#612)
• Add whitespace between words for extractText() (#569, #334)
• "invalid escape sequence" SyntaxError (#522)
• Avoid error when printing warning in pythonw (#486)
• Stream operations can be List or Dict (#665)

Documentation (DOC)

• Added Scripts/pdf-image-extractor.py
• Documentation improvements (#550, #538, #324, #426, #394)

Tests and Test setup (TST)

• Add Github Action which automatically run unit tests via pytest and
  static code analysis with Flake8 (#660)
• Add several unit tests (#661, #663)
• Add .coveragerc to create coverage reports

Developer Experience Improvements (DEV)

• Pre commit: Developers can now pre-commit install to avoid tiny issues
  like trailing whitespaces

Miscallenious

• Add the LICENSE file to the distributed packages (#288)
• Use setuptools instead of distutils (#599)
• Improvements for the PyPI page (#644)
• Python 3 changes (#504, #366)

You can see the full changelog at: 1.26.0...1.27.0

Version 1.26.0

Version 1.26.0

2016-05-18

• NOTE: Active maintenance on PyPDF2 is resuming after a hiatus
• Fixed a bug where image resources where incorrectly
  overwritten when merging pages
• Added dictionary for JavaScript actions to the root _(louib)_
• Added unit tests for the JS functionality _(louib)_
• Add more Python 3 compatibility when reading inline images _(im2703
  and VyacheslavHashov)_
• Return NullObject instead of raising error when failing to resolve
  object _(ctate)_
• Don't output warning for non-zeroed xref table when strict=False
  _(BenRussert)_
• Remove extraneous zeroes from output formatting _(speedplane)_
• Fix bug where reading an inline image would cut off prematurely
  in certain cases _(speedplane)_

Patch 1.25.1

Patch 1.25.1

2015-07-20

• Fix bug when parsing inline images. Occurred when merging
  certain pages with inline images
• Fixed type error when creating outlines by utilizing the
  isString() test