Change Format on Save As

[tb]

I'm trying to come up with a way that would either put a watermark in
project or change the format somehow that would let someone know they
are working on a "saved as" version of a project. we're trying to
avoid someone making a copy for what if purposes, making changes and
then someone else looking at that file and assuming it's official.
Ideally the solution will work both on the screen and in printed
format. The way I'm doing it with an excel file is inserting code for
a watermark in the save as method. Any ideas how I can do a similar
thing in Project?

Thanks,

Tim