PDFXPO

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PDF Accessibility Checker

Audit your documents for WCAG 2.1, Section 508, and PDF/UA compliance with our high-fidelity, local scanner.

  • WCAG 2.1 Audit
  • Section 508 Validation
  • PDF/UA Analysis
  • Local RAM Scanning
Your privacy is guaranteed. No data leaves your browser.

Meet Global Accessibility Standards and the ADA 2026 Deadline

With the new ADA Title II requirements taking effect in April 2026, public entities and businesses must ensure their digital documents are accessible to everyone. Our PDF Accessibility Checker provides a comprehensive audit against WCAG 2.1, Section 508, and PDF/UA standards. By identifying structural failures, missing alt-text, and incorrect tagging locally in your browser, we help you maintain professional compliance and avoid legal liability while ensuring inclusive access to your information.

Private & Secure Document Compliance Auditing

Compliance shouldn't come at the cost of document security. Unlike other online checkers that require you to upload your sensitive files to external clouds, PdfXpo audits your documents entirely on your device. Your internal corporate reports, sensitive legal filings, and personal records never leave your browser's secure memory. This zero-knowledge architecture ensures total data sovereignty while you work towards meeting international accessibility benchmarks.

Detect Structural Failures and Optimize Assistive Tech Compatibility

Our advanced scanner performs a deep structural analysis of your PDF's internal object tree. It checks for proper heading hierarchies, table structures, and the presence of descriptive alternative text for images—all essential for compatibility with screen readers like JAWS or NVDA. Once you've identified these accessibility gaps, you can use our Edit PDF tool to begin remediating the document structure or our OCR PDF utility to fix non-searchable scanned pages.

The Best Free PDF Accessibility Auditor with No Registration

PdfXpo offers a professional-grade accessibility verification suite 100% free, eliminating the need for expensive enterprise software. We don't require account sign-ups, email addresses, or 'premium' subscriptions. Because the high-speed scanning engine is powered by your own device's hardware, we can offer unlimited audits without any daily quotas or file size limits. This makes it the most efficient and private way for developers and compliance officers to verify their digital assets on Windows 11, Mac, and mobile devices.

Professional Compliance Reporting and Remediation Guidance

After each scan, our tool generates a detailed, interactive report highlighting specific failures and providing actionable fix recommendations. This level of detail is critical for maintaining the professional standards required in government filings, academic repositories, and official legal productions. After auditing your files, you can seamlessly transition to our Protect PDF tool to apply encryption, ensuring that your compliant documents remain secure throughout their entire distribution lifecycle.

How PdfXpo Compares to the Giants

Compare PdfXpo against industry standards like iLovePDF and Smallpdf. See why our local WebAssembly technology provides a safer, faster, and more private document utility suite.

Features & CapabilitiesPdfXpo (Local-First)iLovePDFSmallpdf
Processing Architecture100% Client-Side WebAssemblyRemote Cloud ServersRemote Cloud Servers
Data Privacy & SovereigntyZero-Knowledge (No Uploads)Temporary Server CachingTemporary Server Caching
File Size RestrictionsUnlimited (Device Dependent)Strict Free Tier QuotasStrict Free Tier Quotas
Required Software SignupNo Signup RequiredAccount Optional (With Limits)Account Mandatory for some tools
Ad Disruptions & SpamZero InterruptionsAggressive Banner AdvertisementsAggressive Banner Advertisements

How does it work?

  • 1

    Upload PDF

    Drag your document into the secure local audit zone for immediate analysis.

  • 2

    Run Compliance Scan

    The engine performs deep structural analysis against WCAG, Section 508, and PDF/UA standards.

  • 3

    Review Fix Report

    Get a detailed breakdown of structural errors and specific recommendations for remediation.

Frequently Asked Questions

PDF accessibility ensures that digital documents can be read and navigated by people using assistive technologies like screen readers or braille displays.
Yes, it audits your documents against WCAG 2.1 Level AA, which is the legal standard for most government and public entity requirements.
By April 2026, many US public entities and their contractors must ensure all PDF content complies with updated digital accessibility standards under ADA Title II.
No. The entire scan happens locally in your browser using our high-performance WebAssembly audit engine; no data is ever uploaded.
Yes, the tool identifies images without descriptions and other critical structural failures that prevent screen reader accessibility.
Yes, PdfXpo provides this professional-grade accessibility auditor 100% free with no limits or signups required.
Yes, it validates documents against US Section 508 technical standards, which are mandatory for federal agencies and their vendors.
Yes, you can export a detailed summary of all findings after the scan is complete to use in your compliance documentation.
The tool provides specific instructions for fixing errors; some structural fixes can be performed using our local Edit PDF tool.
Most documents are audited in seconds. Performance depends on the number of pages and the complexity of the document's internal structure.