Free tool PDF accessibility checker

Upload a PDF and get a clear view of whether it works for people using assistive technology.

  • Four checks: tagged structure, alt text, document language, document title.
  • Results in a few seconds. No account needed.
  • Checks four core areas aligned with WCAG 2.2 AA and PDF/UA.

Analyze your PDF free

Drop your PDF here

or browse your device - up to 10MB, 5 pages

{{ fileName }}

{{ fileWarning}}

How does it work What gets checked

Twenty automated checks derived from WCAG 2.2 AA and PDF/UA, grouped into the four things that decide whether a document can actually be used with assistive technology.

Structure Tags and reading order

Whether the document has a tag tree, and whether that tree matches the reading order a sighted person sees on the page.

Images Alternative text

Every image, chart, and logo either describes itself in words or is correctly marked as decorative.

Content Tables, lists, and links

Header rows on data tables, real list markup instead of dashes, and link text that makes sense on its own.

Metadata Title and language

A meaningful title set in the document's properties, and a declared language so screen readers pronounce it correctly.

Fix these issues before you publish, not after.

This tool checks one file at a time. Siteimprove monitors every document across your site, tells you which ones people actually download, and shows your team how to fix them.

Book a demo Talk to an expert

Checking your document

This usually takes a few seconds.

  • {{ label }}

Your results

{{ meta.filename }}

{{ meta.filemeta }}

Request a demo
CRITICAL {{ score.critical }}Blocking issues
WARNING {{ score.warning }}Blocking issues
PASSED {{ score.passed }}out of {{ score.totalChecks }} checks
No issues detected!

This document passes every automated check we ran.

Document-wide

  • {{ row.title }} {{ row.status === 'passed' ? 'Passed' : row.status === 'critical' ? 'Critical' : 'Warning' }}

Document preview

{{ previewStatus }}

Critical Warning

Full page

Want this level of coverage everywhere?

Siteimprove monitors every document across your site, not just the one you upload here.

Want these issues fixed at the source?

An accessibility specialist can review the file with you and show how Siteimprove catches the same problems before publishing.

Talk to an expert