Free PDF Checker: Accessibility Testing for PDF Documents
Summary
PDF Checker is a free tool that evaluates the accessibility of a PDF file against WCAG 2.2 AA and PDF/UA requirements. Upload a PDF to identify potential accessibility issues and understand how well your document supports people using assistive technology. The tool provides an overview of accessibility results while reserving detailed remediation guidance for Siteimprove customers.
What is PDF Checker?
PDF Checker helps organizations understand whether a PDF may contain accessibility barriers before publishing or sharing the document.
The tool analyzes a PDF and reports whether common accessibility requirements have been met. Results are based on the same validation service used within Siteimprove Accessibility.
How PDF Checker Works
PDF Checker analyzes uploaded PDF files and validates them against accessibility requirements based on WCAG 2.2 AA and PDF/UA standards.
- Upload a PDF file.
- The file is submitted for validation.
- Accessibility checks are performed.
- Results are generated and displayed.
- Users can review the accessibility summary.
These standards help assess whether PDF content can be accessed effectively by people using assistive technologies. The validation process examines document structure, images, content markup, and metadata. Results are then summarized in the tool interface.
Requirements and Limitations
PDF Checker supports the analysis of PDF files within specific size and page-count limits. Uploaded files must meet the following requirements:
- File type: PDF
- Maximum file size: 10 MB
- Maximum page count: 5 pages
Related Articles
Learn about PDF Checker
Understand your results
Understanding PDF Checker Results
Learn what is evaluated
PDF Accessibility Checks Explained
Processing expectations
After a file is uploaded, accessibility validation is completed within a few seconds in most cases.
Result limitations
PDF Checker provides accessibility scoring, issue counts, and sample issue visibility. PDF Checker does not provide complete remediation guidance within the public tool experience.
Related resources
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