PDF/UA Quick Check

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Check your PDF for the most important accessibility criteria according to PDF/UA (ISO 14289-1) — directly in your browser.

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About This Check

What this check covers

The seven most important structural requirements for accessible PDFs according to PDF/UA (ISO 14289-1): tagging, document language, structure tree, document title, heading hierarchy, image alt text, and table headers.

What this check does not cover

Color contrast, reading order vs. visual order, complete role mappings, font embedding, artifact marking, Unicode mapping, and form field accessibility. For a complete validation, we recommend PAC 2024.

Privacy

Your document never leaves your computer. The analysis runs entirely in your browser. No data is transmitted, stored, or analyzed.

Creating accessible PDFs

adoc Studio creates accessible PDF/UA documents from AsciiDoc — with tagged structure, headings, alt text, and table headers built in. For a comprehensive validation, we recommend PAC 2024 by the PDF/UA Foundation.

How serious is it? Our 2026 study on PDF/UA compliance in DACH industry analyzed 62 technical documents from 8 highly regulated sectors. Not a single one meets the PDF/UA standard. Use the Quick Check above to see if your document is in the same group.

What is PDF/UA?

PDF/UA (ISO 14289-1) is the international standard for accessible PDF documents. It defines requirements that ensure PDFs can be read by assistive technologies like screen readers, braille displays, and text-to-speech systems.

For technical documentation, accessibility is not optional — it’s increasingly required by law. The European Accessibility Act (EAA) and Section 508 in the US mandate accessible digital documents in many contexts.

What this tool checks

This quick check verifies the seven most important structural prerequisites for PDF/UA compliance:

  1. Tagged PDF — Is the document tagged with structural markup?
  2. Document language — Is a language defined so screen readers know how to pronounce text?
  3. Structure tree — Does the document have a semantic structure?
  4. Document title — Is a meaningful title set in the metadata?
  5. Heading structure — Are headings properly tagged and hierarchically correct?
  6. Image alt text — Do images have alternative text descriptions?
  7. Table structure — Do tables have marked header cells?

What this tool does not check

This is a quick check, not a full validation. It does not cover:

  • Color contrast ratios
  • Reading order vs. visual order
  • Complete role mappings
  • Font embedding
  • Artifact marking (decorative elements)
  • Unicode mapping
  • Form field accessibility

For a comprehensive PDF/UA validation, we recommend PAC 2024 by the PDF/UA Foundation.

Privacy

Your document never leaves your computer. The analysis runs entirely in your browser using PDF.js. No data is transmitted, stored, or analyzed on any server.

Creating accessible PDFs with adoc Studio

adoc Studio generates PDF/UA-compliant documents directly from AsciiDoc source files. Tagged structure, heading hierarchy, alt text for images, and table headers are built in automatically — no manual PDF remediation required.

Learn more about adoc Studio's features