Version 3.13.0, 2023-07-23

What's new

New Features (ENH)

• Add is_open in outlines in PdfReader and PdfWriter (#1960)

Bug Fixes (BUG)

• Search /DA in hierarchy fields (#2002)
• Cope with different ISO date length (#1999)
• Decode Black only/CMYK deviceN images (#1984)
• Process CMYK in deflate images (#1977)

Developer Experience (DEV)

• Add mypy to pre-commit (#2001)
• Release automation (#1991, #1985)

Full Changelog

Version 3.12.2, 2023-07-16

What's Changed

Bug Fixes (BUG)

• Accept calRGB and calGray color_spaces (#1968) by @pubpub-zz
• Process 2bits and 4bits images (#1967) by @pubpub-zz
• Check for AcroForm and ensure it is not None (#1965) by @nickryand

Developer Experience (DEV)

• Automate the release process (#1970)

New Contributors

• @nickryand made their first contribution in #1965

Full Changelog: 3.12.1...3.12.2

Version 3.12.1

What's Changed

• Prevent updating page contents after merging page (stamping/watermarking) (#1952) by @pubpub-zz
• % to be hex encoded in names (#1958) by @pubpub-zz
• Inverse color in CMYK images (#1947) by @pubpub-zz
• Dates conversion not working with Z00'00' (#1946) by @pubpub-zz
• Support UTF-16-LE Strings (#1884) by @adamchainz

Full Changelog

Version 3.12.0, 2023-07-02

What's Changed

We finally fully support modern cryptography for encrypting and decrypting PDF files.
A big thank you to @exiledkingcc who did this work a while a go 🙏

New Features (ENH)

• Add AES support for encrypting PDF files (#1918, #1935, #1936, #1938) by @exiledkingcc
• Add page deletion feature to PdfWriter (#1843) by @pubpub-zz

Bug Fixes (BUG)

• PdfReader.get_fields() attempts to delete non-existing index "/Off" (#1933) by @dmjohnsson23
• Remove unused objects when cloning_from (#1926) by @pubpub-zz
• Add the TK.SIZE into the trailer (#1911) by @talcher
• add_named_destination() maintains named destination list sort order (#1930) by @robertkearns

Full Changelog

New Contributors

• @postmeback made their first contribution in #1920
• @talcher made their first contribution in #1911
• @jolheiser made their first contribution in #1921
• @robertkearns made their first contribution in #1931
• @dmjohnsson23 made their first contribution in #1933

Full Changelog: 3.11.1...3.12.0

Version 3.11.1, 2023-06-25

What's Changed

Bug Fixes (BUG)

• Cascaded filters in image objects (#1913) by @pubpub-zz
• Append pdf with named destination using numbers for pages (#1858) by @pubpub-zz
• Ignore "/B" fields only on pages in PdfWriter.append() (#1875) by @pubpub-zz

Full Changelog

Version 3.11.0, 2023-06-23

What's Changed

New Features (ENH)

• Add page_number property (#1856) by @pubpub-zz

Bug Fixes (BUG)

• File expansion when updating with Page Contents (#1906) by @pubpub-zz
• Missing Alternate in indexed/ICCbased colorspaces (#1896) by @pubpub-zz

Full Changelog

Version 3.10.0, 2023-06-18

What's Changed

This release is focused around improving pypdf's capabilities around handling images,
but pypdf should now also deal better with forms.

A big thank you to @pubpub-zz who went above and beyond in this release 👏 🤗

New Features (ENH)

• Extend images interface by returning an ImageFile(File) class (#1848) by @pubpub-zz
• Add capability to replace image (#1849) by @pubpub-zz
• Extraction of inline images (#1850) by @pubpub-zz
• Add set_data to EncodedStreamObject (#1854) by @pubpub-zz

Bug Fixes (BUG)

• Fix RGB FlateEncode Images(PNG) and transparency (#1834) - Add capability to replace image (#1849) by @pubpub-zz
• Generate static appearance for fields (#1864) by @pubpub-zz

Full Changelog

New Contributors

• @adamchainz made their first contribution in #1885
• @jpmedras made their first contribution in #1890
• @Ineffable22 made their first contribution in #1861
• @harshhes made their first contribution in #1886

Full Changelog: 3.9.1...3.10.0

3.9.1

What's Changed

Deprecations (DEP)

• Deprecate PdfMerger (#1866) by @pubpub-zz

Bug Fixes (BUG)

• Ignore UTF-8 decode errors (#1865) by @talibhmukadam

Robustness (ROB)

• Handle missing /Type entry in Page tree (#1859) by @pubpub-zz

New Contributors

• @talibhmukadam made their first contribution in #1865

Full Changelog: 3.9.0...3.9.1

Version 3.9.0, 2023-05-21

What's Changed

New Features (ENH)

• Simplify metadata input (Document Information Dictionary) (#1851) by @pubpub-zz
• Extend cmap compatibilty to GBK_EUC_H/V (#1812) by @pubpub-zz

Bug Fixes (BUG)

• Prevent infinite loop when no character follows after a comment (#1828) by @exiledkingcc
• get_contents does not return ContentStream (#1847) by @pubpub-zz
• Accept XYZ destination with zoom missing (default to zoom=0.0) (#1844) by @pubpub-zz
• Cope with 1 Bit images (#1815) by @pubpub-zz

Robustness (ROB)

• Handle missing /Type entry in Page tree (#1845) by @pubpub-zz

Documentation (DOC)

• Expand file size explanations (#1835) by @DIvkov575
• Add comparison with pdfplumber (#1837) by @RitchieP

Maintenance (MAINT)

• Add R parameter to generate_values (#1820) by @exiledkingcc
• Prepare for adding AES enryption support (#1818) by @exiledkingcc

Code Style (STY):

• Iterate directly over the list instead of using range (#1839) by @jsonn

Full Changelog

New Contributors

• @RitchieP made their first contribution in #1837
• @jsonn made their first contribution in #1839
• @DIvkov575 made their first contribution in #1835

Full Changelog: 3.8.1...3.9.0

Version 3.8.1, 2023-04-23

What's Changed

Bug Fixes (BUG)

• Convert color space before saving (#1802)

Documentation (DOC)

• PDF/A (#1807)
• Use append instead of add_page (#1806) by @neversphere
• Document core mechanics of pypdf (#1783)

New Contributors

• @neversphere made their first contribution in #1806

Full Changelog: 3.8.0...3.8.1