Auto-Tag PDF

Enhance PDF Accessibility with AI-Powered Auto-Tagging Using PDFix

Add Tags to PDF Sample

Why Tagged PDFs Matter for Accessibility

A tagged PDF contains a hidden structure (tag tree) that defines elements like headings, lists, tables, and alt text for images. This ensures compliance with WCAG and PDF/UA standards, making documents accessible for screen readers and assistive technologies.

Automated PDF Tagging Solutions by PDFix

PDFix uses intelligent layout recognition engine to automatically:

  • Detect document structure with smart recognition
  • Auto-tag headings, paragraphs, lists and tables
  • Ensure accurate reading order and semantic structure
  • Add alternative text to images (manual and automated)
  • Batch processing multiple PDF files
  • Apply custom auto-tagging templates
  • Run accessibility validation directly in the app
  • Generate accessibility compliance reports
  • Comply with PDF/UA & WCAG standards

How to Auto-Tag & Make PDFs Accessible | PDFix Desktop Tutorial

PDFix Desktop Tutorial: How to Make a PDF Accessible. Click to load the Embed YouTube Player to play the video.

Master PDF Auto-Tagging with PDFix Templates

How PDFix Templates Work:

  • Customize Recognition: Adapt the recognition algorithm to your document needs
  • Smart Object Detection: Identify elements by type, style, or position
  • Batch Processing: Apply templates to multiple PDF files for consistent tagging
  • Example: Auto-tag headings by font/size (e.g. font=Arial Bold; H1=16pt)

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For Windows, Linux and macOS

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Desktop Lite

Free PDF Viewer and PDF Accessibility Checker with built-in industry supported VeraPDF Validator.

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Desktop Pro

All-in-one tool for automated PDF accessibility, ensuring PDF/UA and WCAG compliance with customizable remediation workflows.

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SDK

AI-powered SDK for PDF accessibility, conversion & data extraction seamlessly integrating into any workflow.


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.