PDF Accessibility Checker (PAC) 2026

axes4 GmbH·axes4.PAC

The free PAC PDF Accessibility Checker helps you assess your documents.

PAC is the globally used, free PDF accessibility checking tool that has been tried and tested since 2010. PAC can check many PDF/UA and WCAG requirements at the touch of a button. In addition to this, PAC also supports the required visual check.

winget install --id axes4.PAC --exact --source winget

Latest 26.1.0.0·March 25, 2026

Release Notes

Improvements

  • Significantly improved AI model providing more reliable results—especially for images, but across all other elements as well.
  • AI testing can now be disabled via a registry key.
  • The AI tab no longer displays errors; it now only shows warnings. Bug fixes
  • Various minor bug fixes and improvements.

Installer type: burn

x86662DAEBD399F5F4D04C936DF2E9574118A062D87334460A20EAC164ED14367FD

Details

Homepage
https://pac.pdf-accessibility.org/
License
Proprietary
Publisher
axes4 GmbH
Copyright
Copyright (c) axes4 GmbH. All rights reserved.
Moniker
PAC

Tags

AccessibilityCheckerDocumentPDF

Older versions (2)

26.0.0.0
x86DAB632D25D95AF94C8FCBF4870CC0FE7B2A39430E792523E0AFC5068C3B6D45C
24.4.4
x862FE32EA34DAA05710B5DF2BCBD978D6FC35E08EF848DBC8D64C63FAB0263978F