CASO Comply vs PAC (PDF Accessibility Checker)
CASO Comply
casocomply.comPAC (PDF Accessibility Checker)
pac.pdf-accessibility.orgSide by side
| Figure | CASO Comply | PAC (PDF Accessibility Checker) |
|---|---|---|
| Price from | — | Free |
| Free plan | — | Yes |
| Free trial | — | — |
| Open source | — | — |
| Web | Yes | — |
| Windows | — | Yes |
| API | Yes | — |
| Self-hosted | Yes | — |
| Plans published | 3 | 1 |
| Spec score · PDF Accessibility Software | 7.9 (#9) | 7.1 (#17) |
| Founded | 1994 | 2010 |
| Headquarters | 134 West 29th Street, 11th Floor, New York, NY 10001, USA | Zurich, Switzerland |
Plans
CASO Comply
- Standard Accessibility$0.30, paid once
- Enhanced Compliance — Most Popular$1.80, paid once
- Full Remediation$12, paid once
In their own words
CASO Comply
CASO Comply has no write-up on Specifiction yet; its figures are above.
PAC (PDF Accessibility Checker)
PAC (PDF Accessibility Checker) is a free Windows desktop application for assessing PDF accessibility. Its Free plan costs nothing and includes PDF/UA and WCAG checks, quality checks, and AI-assisted checks. PAC covers WCAG 2.2 and combines automated scans with manual review tools. It also provides remediation guidance for addressing accessibility issues. The application is made by PAC (PDF Accessibility Checker), founded in 2010 and headquartered in Zurich, Switzerland. Windows is the listed platform. Mobile testing, a browser extension, and CI/CD integration are not included among its capabilities. The stated product scope is PDF accessibility checking, with checks aimed at PDF/UA and WCAG requirements rather than broad application testing. For Windows users reviewing PDF files, the free plan brings automated analysis, reviewer-led assessment, quality checks, AI-assisted checks, and guidance for remediation into one desktop application. Its feature set is focused on document accessibility rather than multi-platform testing.