PDF Accessibility Checker (PAC)

Free PDF/UA checker

The PDF Accessibility Checker (PAC) is a freeware for PDF accessibility testing hosted by the PDF/UA Foundation. With PAC - the worldwide first ISO 14289-1 (PDF/UA) validator - it is possible to evaluate the PDF/UA compliance of your accessible PDFs.

The features:

• 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
• a screenreader preview for evaluating the logical document structure visually
• a view of the tag tree with all properties and attributes
• statistics concerning the document structure
• a printable summary report

Download PAC

Download the newest version: PAC 2021 (only for Windows) - soon available as Public Beta: https://pdfua.foundation

Download older versions that were hosted by the Swiss Foundation "Access for All": https://www.access-for-all.ch/en/pdf-accessibility-checker.html