PDF accessibility checker

Check a PDF against PDF/UA, the ISO standard for accessible PDF: tags and structure, alternative text on figures, fonts, language and metadata. The check runs veraPDF, the open-source validator of a consortium led by the Open Preservation Foundation and the PDF Association. No account needed.

veraPDF checks the rules a machine can check. Whether the alternative text and the reading order make sense still needs a person. The file is not stored.

A check here counts like one API call: 10 credits.

Automate this with one API call that returns veraPDF's full report: see veraPDF as an API. A free account with an API key gets 10 free credits a day plus 100 a month.

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To check a PDF for archiving (PDF/A), use the PDF/A validator.