[texhax] [pdftex] TeX for the blind

[Victor Ivrii]

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