On Mar 3, 2010, at 10:21 AM, manolo gouy wrote:
> Let's turn the thing differently. Is it possible to obtain
> transparency, or pixmaps/bitmaps with transparent background
> using PostScript level 2 ?

You can do clip masking; see the HTMLDOC write_image and write_imagemask code 
in ps-pdf.cxx:

    svn+ssh://svn.easysw.com/public/htmldoc/branch/branch-1.8/htmldoc/ps-pdf.cxx

Either way you can't do full alpha blending in PostScript - that requires PDF.

________________________________________
Michael Sweet, Easy Software Products



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