altex Accessible LaTeX

About this tool

altex is a proof-of-concept utility that enhances PDF accessibility by post-processing files generated from LaTeX. It uses the semantic structure from your source .tex file to tag the compiled PDF.

How it works

• Parses LaTeX: Extracts document structure (headings, lists, math, figures) from your source code.
• Tags PDF: Maps this structure to the PDF content, adding PDF/UA accessibility tags.
• Fixes Metadata: Sets required metadata like title, language, and tab order.
• Validates: Checks the result against PDF/UA-1 standards using verapdf.

Note: This is an automated tool. While it significantly improves accessibility compliance, complex documents may still require manual verification.

View source on GitHub