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 the newest version here: PAC 2024 (only for Windows)
You can get there previous versions like PAC 2021 or PAC 3 as well.