Free online PDF accessibility checker
Check the accessibility of your PDF against WCAG and PDF/UA. Get actionable recommendations to fix the issues and move toward ADA, Section 508, and EAA compliance.
- No sign-up needed
- No email required
- Your PDF is not stored
- 4.9/5
- 5/5
See what to fix, and how
Every issue, ranked, explained, and pinpointed.
Issues listed worst-first
Every issue is ranked from critical to minor, so you fix what matters most first.
See exactly where each issue is
Click any issue to jump straight to the problem element, highlighted on your PDF.
Guidance to fix every issue
Each issue explains what’s wrong and how to fix it, mapped to the WCAG or PDF/UA rule it relates to.
What gets checked in your PDF
We check every machine-verifiable success criterion of the Web Content Accessibility Guidelines (WCAG), and every machine-verifiable test in PDF/UA (ISO 14289).
Structure
- Is the reading order correct?
- Are heading levels correctly nested?
- Are lists structured correctly?
- Do tables have associated headers?
Content
- Are fonts embedded and mapped to text?
- Do images have alt text?
- Is a valid document language set?
- Does it have a title and bookmarks?
Presentation & interaction
- Does text meet WCAG contrast minimums?
- Do form fields have labels and tags?
- Are links tagged and described?
- Is the tab order set correctly?
Note: These are the most common checks. There are many more we run on top of these.
Inaccessible PDFs fail your users, and put you at legal risk
Easy to overlook, expensive to ignore.
Excluded users
People who rely on screen readers, keyboard navigation, or other assistive technology depend on a PDF being properly tagged. When it isn’t, they can’t read it properly, if at all. Information everyone else can access stays out of reach.
Legal exposure
Major accessibility laws, including the ADA, Section 508, and the EAA, require the documents you publish to be accessible. Inaccessible PDFs put you on the wrong side of those laws and leave you exposed to complaints and legal action.
Expert PDF accessibility audits and remediation
The online PDF accessibility checker catches only what a machine can verify. For everything it can’t check or fix, our accessibility experts have you covered.
Expert audit
A specialist manually tests your PDF for the issues automation can’t judge, like reading order, alt-text quality, and logical structure. You get back a complete findings report.
Request an auditPDF remediation
Short on time or expertise? Our team remediates your PDF to meet WCAG and PDF/UA, fixing the tags, structure, and content, then hands it back ready to publish.
Request PDF remediationYes, completely free. No sign-up, no email, and no files stored.
Yes, it’s a fully online tool, with no software to download or install. Upload a PDF or paste a public link and check it right in your browser.
Upload your PDF or paste a public link. The checker scans it against WCAG and PDF/UA, then lists every issue by severity, with guidance on how to fix each one.
Every machine-verifiable success criterion of WCAG (Level A and AA), and every machine-verifiable test in PDF/UA (ISO 14289).
Yes. It checks your PDF against the WCAG and PDF/UA standards that underpin the Americans with Disabilities Act, and flags the accessibility issues that affect ADA compliance. But some checks still need to be done manually to determine whether your PDF is fully compliant.
Yes, it checks against the same WCAG and PDF/UA standards that Section 508 relies on, so you can find the issues that affect Section 508 compliance. But some checks still need to be done manually to check whether your PDF is fully compliant.
No. A clean scan means your PDF has passed every machine-verifiable check. But some checks can only be done manually, and those need to pass too before a PDF is considered fully compliant. Our expert audit covers that manual testing.
It finds them and explains them. Each issue comes with a plain-language description and guidance on how to fix it. You or your team apply the fixes in your document. If you’d rather hand it off, we offer full PDF remediation as a paid service.
