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PDF Accessibility Checker

Check PDF files for accessibility issues using pdf.js, entirely in your browser. Verifies PDF tagging (Marked flag), document language, title metadata, bookmark/outline structure for navigation, and whether pages contain extractable text or are scanned images needing OCR. Supports WCAG and PDF/UA requirements.

Why This Matters

PDF accessibility is critical for government, education, and legal documents. Untagged PDFs read as a wall of text to screen readers. WCAG and PDF/UA require proper tagging, document language, title metadata, and navigable structure. The DOJ ADA Title II rule references PDF/UA-1 as the conformance target for digital documents.

How to Use This Tool

  1. 1

    Upload PDF

    Drag and drop or select a PDF file. Processing happens entirely in your browser.

  2. 2

    Review checks

    The tool checks for tagging, document language, title metadata, bookmarks, and extractable text.

  3. 3

    Fix issues

    Each issue includes guidance on how to fix it in Adobe Acrobat or your authoring tool.

Frequently Asked Questions

What is a tagged PDF?

A tagged PDF contains a structure tree of headings, lists, tables, and figures that screen readers can navigate. Without tags, a PDF reads as unstructured text. Tags are added in authoring tools like Word, InDesign, or Acrobat.

Does this tool check PDF/UA compliance?

This tool checks the most critical PDF/UA requirements: tagging, language, title, bookmarks, and text extractability. For a full PDF/UA-1 conformance audit, use a dedicated tool like veraPDF or PAC.

Is my PDF uploaded to a server?

No. The PDF is parsed entirely in your browser using pdf.js. Your file is never transmitted or stored.

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