Issues

• Incremental AES-256 updates append plaintext objects and lose form field names on reopening

  nf-documentationworkflow-encryption
  py-pdf/pypdf#4322 · Filter by author BeasyTest opened on Oct 31, 2026
  1

• /Indexed images without a filter are extracted as black images

  workflow-images
  py-pdf/pypdf#4317 · Filter by author MartinThoma opened on Oct 30, 2026

• 2-bit and 4-bit /DeviceGray images are extracted as black images

  workflow-images
  py-pdf/pypdf#4316 · Filter by author MartinThoma opened on Oct 30, 2026
  3

• Clarify which write operations are allowed on PdfReader

  breaking-changeneeds-discussionPdfReader
  py-pdf/pypdf#4313 · Filter by author kholdrex opened on Oct 30, 2026
  2

• extract_text() outputs raw glyph names like /f_i and /a.sc from font /Differences

  workflow-text-extraction
  py-pdf/pypdf#4309 · Filter by author michaelkillgta opened on Oct 29, 2026

• PNG predictor causes incorrect extraction of 1-bit and 4-bit images

  workflow-images
  py-pdf/pypdf#4308 · Filter by author Allgore1101 opened on Oct 29, 2026

• PdfWriter.set_page_label crashes with TypeError when start=None

  is-bugworkflow-bookmarks
  py-pdf/pypdf#4285 · Filter by author rahul05ranjan opened on Oct 28, 2026

• Layout mode text extraction crashes with TypeError when Tm/cm has extra operands

  is-robustness-issueworkflow-text-extraction
  py-pdf/pypdf#4283 · Filter by author rahul05ranjan opened on Oct 28, 2026

• XMP: Allow dc:title to be an attribute instead of an element

  is-robustness-issueworkflow-metadata
  py-pdf/pypdf#4277 · Filter by author stefan6419846 opened on Oct 27, 2026

• Allow encryption with MD5 in FIPS environments

  is-featureneeds-discussionworkflow-encryption
  py-pdf/pypdf#4276 · Filter by author stefan6419846 opened on Oct 27, 2026

• Return bytes from pdf_header

  breaking-changeneeds-discussion
  py-pdf/pypdf#4275 · Filter by author j-t-1 opened on Oct 27, 2026
  6

• 6.21.2 rejects AES-128 PDFs whose crypt-filter /Length is written in bits ("Invalid encryption key length: 1024 bits")

  is-regressionworkflow-encryption
  py-pdf/pypdf#4260 · Filter by author fsz-codeshop opened on Oct 26, 2026
  2

• extract_text() joins the two lines of a wrapped table cell into one word since 6.20.0 (regression from #4132)

  workflow-text-extraction
  py-pdf/pypdf#4254 · Filter by author jasmark opened on Oct 25, 2026
  1

• Meta: Refactor some code out of large modules

  Meta
  py-pdf/pypdf#4247 · Filter by author stefan6419846 opened on Oct 23, 2026

• Migrate GitHub pages to dedicated workflow

  is-maintenanceMetanf-documentation
  py-pdf/pypdf#4241 · Filter by author stefan6419846 opened on Oct 21, 2026
  2

• Limit size of inline image data

  needs-discussionworkflow-images
  py-pdf/pypdf#4196 · Filter by author stefan6419846 opened on Oct 13, 2026
  4

• compress_identical_objects() followed by compress_content_streams() silently drops shared content stream parts

  is-bug
  py-pdf/pypdf#4111 · Filter by author ryota-09 opened on Sep 20, 2026
  1

• Synthetic-space detection may insert spaces for small positioning differences

  whitespaceworkflow-text-extraction
  py-pdf/pypdf#4067 · Filter by author r-kamei opened on Sep 10, 2026
  3

• DEP: Unify naming in constants

  breaking-changeneeds-discussion
  py-pdf/pypdf#4006 · Filter by author stefan6419846 opened on Aug 24, 2026
  1

• extract_text: space extraction fails due to bad width estimation for composite fonts without the " " (space) glyph

  workflow-text-extraction
  py-pdf/pypdf#3978 · Filter by author jbylund opened on Aug 18, 2026
  8

• Wrong handling of ligatures

  workflow-text-extraction
  py-pdf/pypdf#3975 · Filter by author stefan6419846 opened on Aug 17, 2026
  1

• Add methods to detect and remove embedded JavaScript

  is-feature
  py-pdf/pypdf#3933 · Filter by author JorgeRebollo-ES opened on Jul 29, 2026
  4

• Check some code in _image_xobject.py and update comments

  py-pdf/pypdf#3869 · Filter by author j-t-1 opened on Jun 17, 2026
  4

• Lazy loading for images

  is-featureworkflow-images
  py-pdf/pypdf#3822 · Filter by author stefan6419846 opened on Jun 1, 2026
  2

• Refactoring of text extraction

  needs-discussionworkflow-text-extraction
  py-pdf/pypdf#3792 · Filter by author stefan6419846 opened on May 21, 2026