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Some content being lost on appending and scaling pages

Status: Open.

#3680 In py-pdf/pypdf;

· tigger0jk opened on Mar 10, 2026

PdfWriter.add_page() hangs on PDFs with pathologically encoded Name objects

Status: Open.

#3678 In py-pdf/pypdf;

· dmitry-kostin opened on Mar 10, 2026

_get_object_from_stream is O(N²) on PDFs with large compressed object streams

Status: Open.

#3676 In py-pdf/pypdf;

· dmitry-kostin opened on Mar 10, 2026

extract_links regularly zip()s with mismatching sizes (when concatenating files)

workflow-bookmarksFrom a users perspective, bookmarks is the affected feature/workflowFrom a users perspective, bookmarks is the affected feature/workflow

Status: Open.

#3667 In py-pdf/pypdf;

· RemyKap opened on Mar 4, 2026

user_access_permissions may return tampered /P value when /Perms validation fails

is-featureA feature requestA feature request

workflow-encryptionFrom a users perspective, encryption is the affected feature/workflowFrom a users perspective, encryption is the affected feature/workflow

Status: Open.

#3657 In py-pdf/pypdf;

· manop55555 opened on Feb 24, 2026

Used named constants everywhere

is-maintenanceAnything that is just internal: Simplifying code, syntax changes, updating docs, speed improvementsAnything that is just internal: Simplifying code, syntax changes, updating docs, speed improvements

Meta

nf-documentationNon-functional change: DocumentationNon-functional change: Documentation

Status: Open.

#3653 In py-pdf/pypdf;

· stefan6419846 opened on Feb 19, 2026

Make most parameters of PdfReader and PdfWriter initialization keyword-only

breaking-changeA planned breaking changeA planned breaking change

PdfReaderThe PdfReader component is affectedThe PdfReader component is affected

PdfWriterThe PdfWriter component is affectedThe PdfWriter component is affected

Status: Open.

#3618 In py-pdf/pypdf;

· stefan6419846 opened on Jan 28, 2026

Migrate StreamObject get_data/set_data to property with getter and setter

breaking-changeA planned breaking changeA planned breaking change

Status: Open.

#3616 In py-pdf/pypdf;

· stefan6419846 opened on Jan 27, 2026

Feature idea: make get_fonts also return the font objects

is-featureA feature requestA feature request

needs-discussionThe PR/issue needs more discussion before we can continueThe PR/issue needs more discussion before we can continue

Status: Open.

#3607 In py-pdf/pypdf;

· Lucas-C opened on Jan 21, 2026

Extend typing to tests

is-maintenanceAnything that is just internal: Simplifying code, syntax changes, updating docs, speed improvementsAnything that is just internal: Simplifying code, syntax changes, updating docs, speed improvements

Status: Open.

#3591 In py-pdf/pypdf;

· stefan6419846 opened on Jan 5, 2026

Radio buttons do not retain values when filling template (when viewed in Adobe Acrobat)

is-bugFrom a users perspective, this is a bug - a violation of the expected behavior with a compliant PDFFrom a users perspective, this is a bug - a violation of the expected behavior with a compliant PDF

needs-discussionThe PR/issue needs more discussion before we can continueThe PR/issue needs more discussion before we can continue

workflow-formsFrom a users perspective, forms is the affected feature/workflowFrom a users perspective, forms is the affected feature/workflow

Status: Open.

#3549 In py-pdf/pypdf;

· melvsparks opened on Dec 5, 2025

reader._get_object_from_stream inefficient

nf-performanceNon-functional change: PerformanceNon-functional change: Performance

Status: Open.

#3527 In py-pdf/pypdf;

· jrafkind-ai opened on Nov 20, 2025