[pdftex] redundant objects with includegraphics

[Andreas Matthias]

> > Is it possible to change the include routine and to
> > prohibit redundant objects in future pdftex versions?
> 
> it is of course possible. The problem is that it is not trivial to do so.
> I did work hard to make pdftex check and remove duplicates of font files,
> and this seems to be a worse nightmare. Maybe some nice day when I have a
> real need of this feature.

In comp.text.pdf there are quite often questions about how to
create pdf documents in 2up and 4up mode. If redundant
objects could be reduced, pdftex would be the answer.

Greetings,
Andreas