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PDF Accessibility Checker Check PDF documents for accessibility best practices.

PDF Accessibility Checker illustration
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PDF Accessibility Checker

Check PDF documents for accessibility best practices.

1

Upload PDF

Drop your PDF file to check.

2

Run Checks

Accessibility tests run automatically.

3

Review

See pass, warning, and fail results with details.

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What Is PDF Accessibility Checker?

The PDF Accessibility Checker analyzes your PDF for common accessibility issues. Tests include document title presence, author metadata, subject description, selectable text content (vs image-only), page size consistency, form field detection, and file size optimization. Each check returns pass, warning, or fail status with detailed explanations. The tool helps ensure your documents are accessible to screen readers, comply with basic accessibility guidelines, and follow PDF best practices. Essential for creating inclusive documents.

Why Use PDF Accessibility Checker?

  • Automatic multi-point accessibility analysis
  • Clear pass/warn/fail status indicators
  • Detailed explanations for each check
  • Checks both metadata and content accessibility

Common Use Cases

Compliance

Check documents against accessibility requirements.

Publishing

Ensure published PDFs are accessible to all readers.

Government

Verify compliance with public sector accessibility mandates.

Education

Make course materials accessible to all students.

Technical Guide

Combines pdf-lib and pdfjs-dist for thorough analysis. pdf-lib reads metadata (title, author, subject), page structure (count, sizes), and form fields. pdfjs-dist extracts text content to verify the document has selectable (non-image) text. Each check produces a pass, warning, or fail result with descriptive detail. File size is evaluated against thresholds (under 5MB pass, 5-20MB warn, over 20MB fail). Page size consistency is checked across all pages.

Tips & Best Practices

  • 1
    Always set a document title for screen readers
  • 2
    Selectable text is essential for accessibility
  • 3
    Consistent page sizes improve readability
  • 4
    Keep file sizes under 5MB for web delivery

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Frequently Asked Questions

Q What standards does this check?
Basic PDF accessibility best practices including metadata, text content, and structure.
Q Does this check WCAG compliance?
It checks common accessibility issues. Full WCAG compliance requires additional testing.
Q Why did text check fail?
Your PDF may be image-based (scanned without OCR). Screen readers need selectable text.
Q How do I fix failed checks?
Each failure includes an explanation. Use the metadata editor to fix missing metadata.
Q Is this tool free?
Yes, completely free with no limits on usage.

About This Tool

PDF Accessibility Checker is a free online tool by FreeToolkit.ai. All processing happens directly in your browser — your data never leaves your device. No registration or installation required.