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PDF Accessibility Checker (PAC) 2024

Free PDF/UA checker

The PDF Accessibility Checker (PAC) is freeware, that you can use for PDF accessibility testing. With PAC, the first worldwide ISO 14289-1 (PDF/UA) validator, you can check your PDFs for compliance with PDF/UA and WCAG standards.

The newest version is PAC 2024 and replaces PAC 2021.

Key features of PAC:

  • A PDF/UA-check with all machine-testable checkpoints of the Matterhorn Protocol
  • A WCAG-check with all machine-testable checkpoints of the Web Content Accessibility Guidelines (WCAG) 2.1
  • Quality checks for simplifying the visual inspection
  • A screenreader preview for visually evaluating the logical structure of the document
  • A view of the tag tree with all properties and attributes
  • Statistics about the document structure
  • A printable summary report

Download PAC

Download the newest version here: PAC 2024 (only for Windows)

You can get there previous versions like PAC 2021 or PAC 3 as well.