PDF Accessibility Checker
Scan & verify Section 508 & WCAG 2.1 digital accessibility specifications offline.
Drag & drop documents to check
or click to choose files from your device (.pdf)
How document accessibility audit works
Verify digital accessibility specifications locally in 3 simple steps.
Upload Documents
Drag & drop your documents into the local sandbox checker.
Structure Analysis
Our engine checks structural tagging, languages, alt text, & title metadata.
Compliance Report
View results instantly & download detailed JSON compliance audits.
Verify compliance offline
Digital accessibility ensures that individuals with visual impairments can fully navigate documents using screen readers. Our local analyzer audits structure trees, alt texts, display titles, and natural language identifiers directly in your browser. All calculations are executed client-side.
For related tasks, check our OCR PDF and Permission Auditor.
Section 508 & WCAG 2.1 Checks
Analyze core structural requirements for digital document accessibility standard compliance.
Detailed Compliance Audit Logs
Generate comprehensive reports mapping exactly which items passed or failed validation.
Secure Sandbox Technology
Absolutely no document content is transmitted over the web. Perfect for corporate data.
Frequently Asked Questions
Find answers about PDF accessibility requirements and testing.
Q.What does this tool check for?
We scan the document's internal tags tree structure, natural language declarations, alternate image text descriptors, and display title configurations.
Q.Are my files uploaded online during the audit?
No. The entire analysis runs client-side in your web browser environment. Your files are never uploaded to any remote server.
Q.Why is a tagged structure tree critical?
A structural tag tree forms the logical reading order of a PDF, enabling assistive tools like screen readers to read paragraphs and headings in sequence.
Q.Does this accessibility check modify my PDF?
No. This tool is a read-only scanner that audits document metadata and dictionary tables without modifying any layout or bytes.
🛠️ Discover Related Verification & Security Tools
For other document validation and conformance standards, discover our complete suite of client-side PDF utilities. Perform official compliance checking with our PDF/A Validator, convert documents to archival standards using the PDF to PDF/A Converter, upgrade or downgrade compliance specifications with the PDF Version Converter, or audit operational rights with our PDF Permission Auditor.