Originally Posted by AustinChief
Again, not true. You can say they shouldn't... but I can recreate a plausible situation right now..
Random dude grabs original, walks to copier, loads safety paper in feeder, places original on platen, copies to the safety paper and then stamps and signs it... then replaces original with new signed one on platen, hits big button for SCAN to email (or folder)... and done, he has the pdf to forward to the White House. That's a pretty standard procedure in any office or government environment.
So how would the individual elements get on their own layers in that scenario?