However, sometimes it might give problems. For example, I have sometime converted a PS to a PDF that Evince would open fine, but Acrobat Reader would not. I fixed this problem making use of the superb alternatives system present in Debian.
The first thing to know is that most of PS and PDF manipulation (including PS-to-PDF conversion) is done by calling a backend application called Ghostscript (GS). A quick search within the Debian packages shows that most (if not all) of the GS versions mentioned in the wikipedia page are available:
Bart[~/]: aptitude search ^gs- i gs-afpl - The AFPL Ghostscript PostScript interpreter p gs-aladdin - Transitional package p gs-cjk-resource - Resource files for gs-cjk, ghostscript CJK-TrueType extension i A gs-common - Common files for different Ghostscript releases i A gs-esp - The Ghostscript PostScript interpreter - ESP version p gs-gpl - The GPL Ghostscript PostScript interpreter v gs-pdfencrypt -
It turns out I was using
Bart[~/]: which gs /usr/bin/gs Bart[~/]: ls -l /usr/bin/gs lrwxrwxrwx 1 root root 20 Jul 4 09:00 /usr/bin/gs -> /etc/alternatives/gs* Bart[~/]: ls -l /etc/alternatives/gs lrwxrwxrwx 1 root root 16 Jul 27 11:26 /etc/alternatives/gs -> /usr/bin/gs-esp
I remember having used different GS versions, and AFPL being the "best", so I installed it and made the default
gs point to it, with the Debian alternatives system (as
Bart:~# aptitude install gs-afpl [...] Bart:~# update-alternatives --config gs There are 2 alternatives which provide `gs'. Selection Alternative ----------------------------------------------- * + 1 /usr/bin/gs-esp 2 /usr/bin/gs-afpl Press enter to keep the default[*], or type selection number:
There, I just pressed "2", et voilÃ ! Now my default GS is
ps2pdf makes use of it. Any other GS version one could want to use, the procedure to change it would be the same.