[xep-support] Underlined hyperlinks in PDF output

[Sebastian Rahtz]

> Any chance we can use common names for processing instructions?

maybe. currently I'd say something like
 
<?xmltex \pdfcatalog { /ViewerPreferences << /FitWindow true >>} ?>

(untested!), ie we have a TeX primitive to add things to
the PDF catalog. Having a PI pdfcatalog might do, so
one could say

 <?pdfcatalog /ViewerPreferences << /FitWindow true >> ?>

But I realize the link style thing is harder, as it is
set per link. so I end up calling a TeX command as follows:

 \pdfstartlink
      attr{%
        /Border[\@pdfborder]%
        /H\@pdfhighlight
        /C[\@filebordercolor]%
      }%
      user {%
        /Subtype/Link%
        /A<<%
          /F(#2)%
          /S/GoToR%
          \ifHy at newwindow /NewWindow true \fi
          \ifx\\#3\\%
            /D[0 \@pdfstartview]%
          \else
            /D(#3)%
          \fi
        >>%
      }%

where things like bordercolor and style are TeX macros
which have been set somewhere. I'm not sure how to generalize
this so that it could be portable. But I'm sure you'll
want all this in XEP sooner rather than later, eg setting a
link to force opening a new window.

we wont even talk about PDF forms :-}

-- 
Sebastian Rahtz <sebastian.rahtz at computing-services.oxford.ac.uk>
OUCS


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