Re: PDF Quality (was RE: barline problem)

[Han-Wen Nienhuys]

Kress, Stephen schreef:
> Edit your PDF file and search for the string "/Type/ExtGState".  It
> should be preceeded by a double angle bracket, << (probably on the same 
> line).  It probably has a single line like, "/OPM 1" followed by a 
> closing double angle bracket, >> and the word "endobj".  (The double 
> angle brackets mark the boundaries of a PDF dictionary object.)  After 
> the "/OPM 1" but befor the angle brackets, add the text, "/SA true".  So 
> the line should end up looking like, "/OPM 1/SA true>>endobj" (or 
> something like that).
>
> Be sure to follow the above for every instance of "/Type/ExtGState" in 
> your file (though I believe you'll only find one).
>
> The ExtGState dictionary type is used by a PDF document as a properties 
> dictionary for setting graphic state properties for a page.  The "/SA" 
> property (essentially) turns on antialiasing (i.e., "best rendering") 
> for line art in the PDF document (which is *not* on by default).

Thanks for the hint. The GS PDF doesn't set /SA (as can be inspected by 
anyone by running with -dCompressPages=false) by default, but turns out 
to do it if you call setstrokeadjust in the PS file, which I did for CVS.

GS claims to have strokeadjust on by default when running GS from the 
command line; I (mistakenly) thought that GS' PDFs would have it 
switched on as well.

--

Han-Wen Nienhuys - address@hidden - http://www.xs4all.nl/~hanwen

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