[whogben]

I have the same problem - did you manage to figure out a solution?

I noticed with one of the objects that turning on/off shadows on an interior element made a difference. The shadow was nowhere near the edge (ie: it should not have been increasing the size of the object).

This is a pretty big problem as I'm trying to assemble a lot of modular objects that match in width - and the copy as pdf is changing the width on one of them, messing up all the alignments.