[pdftex] redundant objects with includegraphics

[Han The Thanh]

Hi,

> actually I've already finished my patch, and am testing it just right
> now :-) As you say, it wasn't that hard to do it right, without having
> to introduce a new primitive.
> 
> I'll put up a patch later today or tomorrow.

that's great. I also saw some questions about merging ps files on cstex
mail list. It you can make this work, it could be the answer for merging ps
files as well.

Regards,
Thanh