[texhax] [pdftex] TeX for the blind
Victor Ivrii
vivrii at gmail.com
Mon Dec 11 15:28:36 CET 2006
I want to add
1) On tex4ht site
http://www.cse.ohio-state.edu/~gurari/TeX4ht/
it is mentioned that certain files in ?texmf?/tex4ht/bin and
?texmf?/tex4ht/xttl (not sure where it is your distribution) will be
used for speak
2) In pdftex and in comp.text.tex was discussed example showing that
one can specify copy-paste buffer different from the "printed" text
(works only in AR or Acrobat AFAIK). There is a claim from Adobe that
it would be useful for accessibility features but it was not
explanation how
\documentclass[12pt]{article}
\begin{document}
\bgroup
\lccode`!=`\\
\lowercase{\gdef\esc{!!}}
\egroup
You can easily write equations such as
\pdfliteral direct {%
/Span <<
/ActualText ($ \esc sum_{i=1}^{n}i = \esc frac{1}{2}n \esc cdot (n+1) $)
>>
BDC
}
$\sum_{i=1}^{n}i=\frac{1}{2}n\cdot(n+1)$
\pdfliteral direct {%
EMC
}
in \LaTeX.
\end{document}
--
========================
Victor Ivrii, Department of Mathematics, University of Toronto
http://www.math.toronto.edu/ivrii
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