Free tool

Check PDF files for basic accessibility gaps

Choose up to 25 PDF files from your computer. Each one is checked in your browser with the same checks as the PDF Triage extension. Nothing is uploaded.

This tool needs JavaScript. It runs entirely in your browser.

What it checks

Your files stay on your computer

The page reads each file with your browser and checks it there, using the open-source PDF.js library served from this site. Files are not sent to us or to anyone else. You can confirm this in your browser's developer tools: the Network tab shows that checking a file sends nothing. The page also loads Cloudflare Web Analytics, which counts visits and measures page loading, not files (see our privacy page).

What it does not do

This is a first-pass check, not an accessibility audit. It does not repair files, and it cannot judge reading order, alt text quality or contrast. A file with no flagged problems may still be inaccessible, and this check does not certify that any file meets a legal standard.

Checking a whole website?

PDF Triage is our Chrome extension. It finds the PDFs linked from a page or across a site's sitemap, runs these checks on each one, and exports the results as a CSV file.