Re: [groff] PDF problems - see attached file

[Robert D. Goulding]

Dear all:

Thanks for testing out the files.  From scanning ghostscript's bug
database, it seems that pdfwrite has had a few problems with font handling
in the 7.x release branch.  One registered bug is very similar to the
ours; look at bug # 524292 at:

http://sourceforge.net/tracker/?group_id=1897&atid=101897

The ligatures in this sample pdf file (produced with TeX -> dvips ->
ps2pdf) show exactly the same bad kerning.  The bug reporter notes that
the ps file looks fine, and the bad pdf is produced only by 7.x, not by
6.5x.  The bad ligature kernings arise after a change of font size.
Could this be the reason that the error shows up on the *second* page of
my sample - i.e., due to font changes for headers/footers during the page
transition?

So, definitely a ghostscript bug - I'll send a note to the gs team.
Thanks for all your help.

Robert.


 --
Robert Goulding
Society of Fellows
Joseph Henry House
Princeton NJ 08544

On Wed, 22 May 2002, Ralph Corderoy wrote:

>
> Hi Robert,
>
> > 1) groff's postscript output can be distilled to pdf using the 6.x
> > branch of ghostscript without problem.
>
> If grops's output looks OK in gv for a particular version of groff, but
> then the ps2pdf output for that very same file is dodgy in the same gv
> then that limits it to GhostScript's ps2pdf since groff is no longer
> involved once the PostScript has been produced.
>
> ps2pdf should be able to distill any valid PostScript AIUI.
>
> By all means keep talking about it on the groff list since it will be of
> interest, but you may have more chance of an answer talking to the
> GhostScript folks.
>
> Cheers,
>
>
> Ralph.
>
>