The PDF, made legible.
Upload one document and get a saved WCAG 2.1 AA findings report—clear enough to hand to the person making the next edit.
Start a report
Restoring your latest scan…
Anonymous scan ids are not a privacy boundary. Do not upload confidential documents in this first release.
The five signals
A small pass that tells the truth about what it knows.
Title metadata
Whether the PDF announces a useful name instead of leaving readers with a filename or “Untitled”.
Heading structure
Whether the document outline exposes a meaningful hierarchy to people navigating by headings.
Reading order
Whether tagged sequence and visible coordinates agree, with complex layouts routed to review.
Text contrast
Whether detectable text/background pairs clear a conservative AA heuristic, with visual cases flagged.
Image alt text
Whether detected images expose meaningful alternate text through the PDF structure tree.
How it works
A report that distinguishes evidence from judgment.
PDF accessibility is partly structural and partly visual. This first pass keeps both visible, so a “review” is an honest handoff—not a hidden guess.
Keep the source
Your original PDF is stored for this scan, while the browser keeps only its latest opaque scan id.
Read the structure
Vellumward inspects metadata, tags, text coordinates, image operators, and rendered pages.
Separate certainty
Proven signals become pass or fail; visual and semantic ambiguity stays visible as review.
A note on this first release
Useful before it is universal.
Vellumward’s anonymous report ids make it easy to try the workflow, but they are not authentication. Keep sensitive source files out of this release; private, account-owned report history is a deliberate next step.