What are accessible PDF documents?

An accessible PDF meets strict standards – PDF/UA & WCAG – to ensure readability for users with disabilities, including screen reader compatibility. Key requirements:

  • Proper Heading Structure
  • Logical Reading Structure for Navigation
  • Alternate Text for Images
  • Tagged Tables & Lists
  • Accessible Hyperlinks
  • Color Contrast & Fonts

What is PDF Remediation?

PDF Remediation converts non-accessible PDFs into compliant, structured documents. With PDFix, you can:

  • Automatically detect document structure
  • Auto-Tag PDFs
  • Ensure logical structure for screen readers
  • Add alt text & metadata
  • Bookmarks & navigation

Why PDF Tagging is Essential for Accessibility

Untagged PDF = Inaccessible PDF. Tags create a logical structure for screen readers. PDFix auto-tagging features include:

  • Automated heading detection
  • Automatic list & table recognition
  • Reading order correction
  • Batch processing for large documents sets

PDF Auto-Tagging for Effortless PDF/UA & WCAG Compliance

Meeting PDF accessibility compliance is a legal requirement. PDFix helps you meet:

  • PDF/UA (ISO 14289) – Global PDF accessibility standard
  • WCAG – Web Content Accessibility Guidelines
  • Section 508 (US); AODA (Canada); EN 301 549 (EU)

Why choose PDFix?

  • Member of the PDF Association 
  • AI-powered automation 
  • Developer-friendly & end-user solutions
  • Easy & fast integration

Best PDF Accessibility Solution Tools

PDFix Desktop – All-in-one Accessibility Solution

PDFix SDK Developer PDF Accessibility Toolkit


For Windows, Linux and macOS

PDFix Desktop Lite Icon in the gray color, which illustrates the "Lite" features.

PDF Accessibility Checker

Free PDF accessibility validator. Instantly check compliance for WCAG 2.2, PDF/UA, and Section 508. Fast, cross-platform tool for document audits.

PDFix Desktop Pro Icon in blue color, which illustrates powerful PDF features built on the PDFix SDK

PDF Remediation Tool

AI-powered PDF accessibility remediation tool. Auto-tag complex PDFs, tables and automate PDF/UA fixes for high-volume workflows.

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PDF Accessibility API

Enterprise PDF accessibility SDK for integrating automated tagging, remediation, and validation into scalable document workflows across US and EU compliance requirements.


Disclaimer: PDFix provides tools and technology to assist in making your documents accessible, but we do not guarantee 100% document accessibility. Achieving full compliance requires human checks and intervention. Please note that PDFix is a technology provider, not a service provider. The responsibility for document compliance rests with the user.