PDF Accessibility Checker
PDF/UA-aware accessibility checking against ISO 14289-1 and WCAG 2.1 contrast.
FAQ
Does this check PDF/UA and WCAG?
It runs the ISO 14289-1 (PDF/UA-1) mandatory rules and WCAG 2.1 color-contrast on text runs, keyed to each rule with remediation hints. It is PDF/UA-aware checking — checker evidence for your audit trail, not a legal compliance ruling.
Does it remediate (tag/fix) the PDF?
No — Preflight is a checker, not a remediation tool. It reports what fails and why; fixing the PDF (tagging, alt text, reading order) is done in your authoring or remediation workflow.
How is alt-text quality assessed?
Missing alt text is a deterministic, critical finding. Alt-text quality (is it descriptive vs. generic) is an opt-in, advisory AI assist that never produces a critical finding on its own.
Can I export results for an audit?
Yes — download a canonical compliance summary with per-rule status, the rule version, and a sha256 tamper hash so the artifact is verifiable.