veraPDF PDF/UA checker
Upload a PDF and get a workflow-backed PDF/UA preflight report before you run a formal veraPDF or PAC validation.
- Checks tags, language, title, text layer, parent tree, MCIDs, and alt-text signals
- Flags issues that commonly fail PDF/UA validators
- Exports a JSON evidence report for remediation handoff
- Proxied actor run with pollable workflow progress
How to verapdf checker
- Drop a PDF into the checker.
- Review failed, warning, and human-review findings.
- Export the JSON report or use it as a preflight before a formal veraPDF run.
Frequently asked questions
Does this run the official veraPDF CLI?
No. This starts an okraPDF workflow that proxies the PDF to the accessibility checker actor for machine-detectable PDF/UA signals. Use the exported report as preflight evidence, then run official veraPDF/PAC for formal validation.
Can this prove WCAG or PDF/UA compliance?
No single automated checker can prove full compliance. This tool separates machine-detectable issues from human-review items such as reading order and meaningful alt text.
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