What it does
PDF Accessibility Checker audits a document against accessibility standards and reports issues to fix.
- Accessibility audit
How do I check if a PDF is accessible?
Check a PDF's accessibility by uploading it; the tool inspects it against WCAG and PDF/UA principles — document tags, reading order, image alt text, language, title and colour contrast — and gives you a report of issues to fix. The analysis runs in your browser, so the file is never uploaded.
- Checks tags, reading order and alt text
- Flags missing title, language and contrast issues
- Actionable pass/fail report
- 100% client-side
What is
PDF Accessibility Checker
A tool that audits a PDF against accessibility standards (WCAG, PDF/UA) and reports issues such as missing tags, alt text, reading order, language and contrast problems.
PDF Tools
Related terms
WCAGPDF/UAtagged PDF
Frequently Asked Questions
Tags, alt text, order, contrast.
It reviews document tags, reading order, image alt text, title, language metadata and colour contrast against accessibility guidelines.
It reports them.
The checker identifies problems and explains them so you can remediate in an authoring tool.
No.
The audit runs locally in your browser.
Detailed Explanation
How it works
The tool inspects the PDF structure with pdf.js/pdf-lib — tags, marked content, metadata and object properties — and evaluates them against WCAG and PDF/UA rules.
- Structure inspection
Use cases
Verify documents for public-sector, education and enterprise accessibility requirements before publishing.
- Compliance checks
Limitations
Automated checks catch structural issues but cannot fully judge meaningful alt text or logical reading order, so manual review is still recommended.
- Automation has limits
Privacy
The audit runs in the browser; the document is not uploaded.
- 100% local