What Is PDF Checker?
Summary
PDF Checker is a free accessibility testing tool that evaluates PDF files against WCAG 2.2 AA and PDF/UA requirements. It helps identify whether a document may present accessibility barriers for people using assistive technologies.
What does PDF Checker do?
PDF Checker analyzes a PDF and provides an accessibility assessment based on automated checks.
The tool helps users:
- Evaluate PDF accessibility
- Identify potential accessibility issues
- Understand overall document accessibility health
- Assess readiness for accessibility compliance efforts
The scoring and validation use the same PDF validation service used within Siteimprove Accessibility.
Why PDF accessibility matters
Accessible PDFs help ensure content is available to users who rely on:
- Screen readers
- Keyboard navigation
- Alternative input devices
- Assistive technologies
Accessibility standards such as WCAG and PDF/UA provide guidance for creating documents that can be accessed and understood by a wider audience.
What information is provided?
PDF Checker provides:
- Accessibility validation results
- Critical issue counts
- Warning counts
- Passed check counts
- Document information, including file size and page count
Detailed remediation information is intentionally limited within the tool.
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