PAC (PDF Accessibility Checker)

PAC (PDF Accessibility Checker) is a free Windows desktop application for assessing PDF accessibility. The Free plan costs nothing and includes PDF/UA checks, WCAG checks, quality checks, and AI-assisted checks. PAC covers WCAG 2.2 and combines automated scans with manual review tools, allowing software checks and reviewer-led assessment in the same application. It also supplies remediation guidance for addressing identified accessibility issues. The listed platform is Windows. Mobile testing, a browser extension, and CI/CD integration are not included among its capabilities. PAC is made by PAC (PDF Accessibility Checker), founded in 2010 and headquartered in Zurich, Switzerland. Its stated scope centers on evaluating PDFs against accessibility criteria rather than testing a range of platforms or deployment pipelines. For Windows users who need PDF/UA and WCAG assessment, the free application brings automated analysis, manual inspection, and remediation help together.

PAC focuses on PDF accessibility assessment with both automated and reviewer-led tools. Its free Windows application is a practical fit when PDF/UA, WCAG, and remediation guidance are the main requirements.

PAC suits Windows users reviewing PDF accessibility against PDF/UA and WCAG 2.2. It is intended for workflows combining automated checks with manual review and remediation guidance.