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Recently PDF has been accepted as a standard for production of electronic documents, as ISO 32000-1:2008, with an acronym of PDF/UA (for “Universal Accessibility”). The second draft ISO 32000-2:2009 is to include specifications for including MathML tagging of mathematical environments and expressions. This talk presents a report on work-in-progress, aimed at: developing the primitive commands for pdfTeX needed to support the production of fully tagged PDF documents; writing appropriate TeX and LaTeX macros to make effective use of the new primitives; authoring changes to internal LaTeX structures to use these macros automatically at appropriate places within the existing code-base for LaTeX. This is work that is being undertaken together with Hàn Thế Thành, author of pdfTeX [Thành, Hàn Thế; Thesis – pdfTeX, published as: TUGboat, 21:4, (2000).], who has added some new primitive commands to an experimental version of this software tool.
1. Adobe Systems Inc.: PDF Reference 1.7. November 2006.
2. Thành, Hàn Thế: Thesis – pdfTeX. published as: TUGboat, 21:4, (2000).
3. Document Management – Electronic document file format for long term preservation – Part 1: Use of PDF 1.4 (PDF/A-1).
4. Document management – Portable document format (PDF 1.7). July 2008.
5. Moore, Ross R.: Advanced features for publishing mathematics, in PDF and on the Web. TUGboat, 29:3, (2008), pp. 464–473.
6. PDF/UA Universal Accessibility. websites at and
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