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Changes

New Features (ENH)

• Add level parameter to compress_content_streams (#2044)
• Process /uniHHHH for text_extract (#2043)

Bug Fixes (BUG)

• Fix AnnotationBuilder.link (#2066)
• JPX image without ColorSpace (#2062)
• Added check for field /Info when cloning reader document (#2055)
• Fix indexed/CMYK images (#2039)

Maintenance (MAINT)

• Cryptography as primary dependency (#2053)

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What's new

New Features (ENH)

• Accelerate image list keys generation (#2014)
• Use cryptography for encryption/decryption as a fallback for PyCryptodome (#2000)
• Extract LaTeX characters (#2016)
• ASCIIHexDecode.decode now returns bytes instead of str (#1994) :warning: This could be a breaking change for people who directly use ASCIIHexDecode. If you don't import ASCIIHexDecode, you're safe. It was not marked explicitly as a breaking change as it should have returned bytes in the first place.

Bug Fixes (BUG)

• Add RunLengthDecode filter (#2012)
• Process /Separation ColorSpace (#2007)
• Handle single element ColorSpace list (#2026)
• Process lookup decoded as TextStringObjects (#2008)

Robustness (ROB)

• Cope with garbage collector during cloning (#1841)

Maintenance (MAINT)

• Cleanup of annotations (#1745)

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)

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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 https://github.com/py-pdf/pypdf/pull/1965

Full Changelog: https://github.com/py-pdf/pypdf/compare/3.12.1...3.12.2

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

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 https://github.com/py-pdf/pypdf/pull/1920
• @talcher made their first contribution in https://github.com/py-pdf/pypdf/pull/1911
• @jolheiser made their first contribution in https://github.com/py-pdf/pypdf/pull/1921
• @robertkearns made their first contribution in https://github.com/py-pdf/pypdf/pull/1931
• @dmjohnsson23 made their first contribution in https://github.com/py-pdf/pypdf/pull/1933

Full Changelog: https://github.com/py-pdf/pypdf/compare/3.11.1...3.12.0

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

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

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 :clap: :hugs:

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 https://github.com/py-pdf/pypdf/pull/1885
• @jpmedras made their first contribution in https://github.com/py-pdf/pypdf/pull/1890
• @Ineffable22 made their first contribution in https://github.com/py-pdf/pypdf/pull/1861
• @harshhes made their first contribution in https://github.com/py-pdf/pypdf/pull/1886

Full Changelog: https://github.com/py-pdf/pypdf/compare/3.9.1...3.10.0

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 https://github.com/py-pdf/pypdf/pull/1865

Full Changelog: https://github.com/py-pdf/pypdf/compare/3.9.0...3.9.1