I didn't have much luck. I found this PHP class:
http://sourceforge.net/projects/tcpdf/
It does seem to partially work, but I didn't see a front-end for it.
I hacked up the test file provided and made an imperfect conversion of
the link you sent me.
I also saw this:
http://sourceforge.net/projects/acrophobia/
But that looks a little dubious. I may have a peek inside the RPM anyway....
Chris