PDF/A-3u as an archival format for Accessible mathematics
| Autor: | Moore, Ross |
|---|---|
| Rok vydání: | 2014 |
| Předmět: | |
| Druh dokumentu: | Working Paper |
| Popis: | Including LaTeX source of mathematical expressions, within the PDF document of a text-book or research paper, has definite benefits regarding `Accessibility' considerations. Here we describe three ways in which this can be done, fully compatibly with international standards ISO 32000, ISO 19005-3, and the forthcoming ISO 32000-2 (PDF 2.0). Two methods use embedded files, also known as `attachments', holding information in either LaTeX or MathML formats, but use different PDF structures to relate these attachments to regions of the document window. One uses structure, so is applicable to a fully `Tagged PDF' context, while the other uses /AF tagging of the relevant content. The third method requires no tagging at all, instead including the source coding as the /ActualText replacement of a so-called `fake space'. Information provided this way is extracted via simple Select/Copy/Paste actions, and is available to existing screen-reading software and assistive technologies. Comment: This is a post-print version of original in volume: S.M. Watt et al. (Eds.): CICM 2014, LNAI 8543, pp.184-199, 2014; available at http://link.springer.com/search?query=LNAI+8543, along with supplementary PDF. This version, with supplement as attachment, is enriched to validate as PDF/A-3u modulo an error in white-space handling in the pdfTeX version used to generate it |
| Databáze: | arXiv |
| Externí odkaz: |
|