Version 6.1.3, 2025-10-22

What's new

Security (SEC)

• Allow limiting size of LZWDecode streams (#3502) by @stefan6419846
• Avoid infinite loop when reading broken DCT-based inline images (#3501) by @stefan6419846

Bug Fixes (BUG)

• PageObject.scale() scales media box incorrectly (#3489) by @Nid01

Robustness (ROB)

• Fail with explicit exception when image mode is an empty array (#3500) by @stefan6419846

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Version 6.1.2, 2025-10-19

What's new

Bug Fixes (BUG)

• Fix handling of zero-length StreamObject (#3485) by @Likend

Robustness (ROB)

• Deal with wrong size for incremental PDF files (#3495) by @stefan6419846
• Improve handling for malformed cross-reference tables (#3483) by @stefan6419846

Developer Experience (DEV)

• Use released Python 3.14 by @stefan6419846
• Use Mapping instead of dict in type hint of update_page_form_field_values (#3490) by @stefan6419846

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Version 6.1.1, 2025-09-28

What's new

Bug Fixes (BUG)

• Insert new embedded files in a sorted manner (#3477) by @stefan6419846
• Fix name tree handling for embedded files with Kids-based inputs (#3475) by @stefan6419846
• Make embedding files not break PDF/A-3 compliance (#3472) by @stefan6419846

Documentation (DOC)

• Document AFRelationship handling for PDF/A and provide constants (#3478) by @stefan6419846

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Version 6.1.0, 2025-09-21

What's new

New Features (ENH)

• Enhance XMP metadata handling with creation and setter methods (#3410) by @Arya-A-Nair
• Add all font metrics for base 14 Type 1 PDF fonts (#3363) by @PJBrs
• Allow deleting embedded files (#3461) by @stefan6419846
• Add support for Python in FIPS mode for document identifier (#3438) by @xnox

Bug Fixes (BUG)

• Fix handling of UTF-16 encoded destination titles (#3463) by @stefan6419846
• Guard empty input to prevent IndexError (#3448) by @KyleJung0828

Developer Experience (DEV)

• Fix type hint for XMP metadata setter to add bytes type (#3464) by @stefan6419846

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Version 6.0.0, 2025-08-11

What's new

Security (SEC)

• Limit decompressed size for FlateDecode filter (#3430) by @stefan6419846

Deprecations (DEP)

• Drop Python 3.8 support (#3412) by @stefan6419846

New Features (ENH)

• Move BlackIs1 functionality to tiff_header (#3421) by @j-t-1

Robustness (ROB)

• Skip Go-To actions without a destination (#3420) by @badGarnet

Developer Experience (DEV)

• Update code style related libraries (#3414) by @stefan6419846
• Update mypy to 1.17.0 (#3413) by @stefan6419846
• Stop testing on Python 3.8 and start testing on Python 3.14 (#3411) by @stefan6419846

Maintenance (MAINT)

• Cleanup deprecations (#3424) by @stefan6419846

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Version 5.9.0, 2025-07-27

What's new

New Features (ENH)

• Automatically preserve links in added pages (#3298) by @larsga
• Allow writing/updating all properties of an embedded file (#3374) by @Arya-A-Nair

Bug Fixes (BUG)

• Fix XMP handling dropping indirect references (#3392) by @stefan6419846

Robustness (ROB)

• Deal with DecodeParms being empty list (#3388) by @stefan6419846

Documentation (DOC)

• Document how to read and modify XMP metadata (#3383) by @stefan6419846

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Version 5.8.0, 2025-07-13

What's new

New Features (ENH)

• Implement flattening for writer (#3312) by @PJBrs

Bug Fixes (BUG)

• Unterminated object when using PdfWriter with incremental=True (#3345) by @m32

Robustness (ROB)

• Resolve some image extraction edge cases (#3371) by @stefan6419846
• Ignore faulty trailing newline during RLE decoding (#3355) by @henningkoertelgmg
• Gracefully handle odd-length strings in parse_bfchar (#3348) by @stefan6419846

Developer Experience (DEV)

• Modernize license specifiers (#3338) by @stefan6419846

Maintenance (MAINT)

• Reduce max-complexity of tool.ruff.lint.mccabe (#3365) by @j-t-1
• Refactor text extraction code by @MartinThoma

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Version 5.7.0, 2025-06-29

What's new

Performance Improvements (PI)

• Performance optimization for LZW decoding (#3329) by @henningkoertelgmg

Robustness (ROB)

• Flate decoding for streams with faulty tail bytes (#3332) by @henningkoertelgmg
• dc_creator could be a Bag as well (#3333) by @stefan6419846
• Handle tree being NullObject when retrieving named destinations (#3331) by @stefan6419846

Maintenance (MAINT)

• Move inline-image mappings to constants (#3328) by @stefan6419846

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Version 5.6.1, 2025-06-22

What's new

New Features (ENH)

• Add PDF/A XMP metadata support (#3314) by @Arya-A-Nair

Robustness (ROB)

• Deal with annotations not being lists on merge (#3321) by @stefan6419846
• Handle NullObject for cmap encoding Differences entry (#3317) by @stefan6419846

Developer Experience (DEV)

• Update ruff to 0.12.0 (#3316) by @stefan6419846

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Version 5.6.0, 2025-06-01

What's new

New Features (ENH)

• Add basic support for JBIG2 by using jbig2dec (#3163) by @stefan6419846

Bug Fixes (BUG)

• Fix crashes by removing unnecessary line (#3293) by @larsga
• Add delimiters to NameObject.renumber_table (#3286) by @ztravis

Robustness (ROB)

• Handle DecodeParms being a NullObject (#3285) by @stefan6419846

Code Style (STY)

• Update to mypy 1.16.0 (#3300) by @stefan6419846

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