I'm trying to install a few European pre hanged doors and need some advise. The doors will be installed over newly laid hardwood floor and the existing clearance between bottom of the door and floor will be more than I desire - 1 1/2". I'd like to trim the jambs and this is what I'm uncertain about. Since the jambs are finished - their insides, the visible part, look like a finished cabinet. I'd like to trim the jambs, so the clearance will be 3/4". What is the best way to get this done without damaging the jambs or any other part of the doors? I thought of removing the door entirely and then use miter saw cut the ends to the desired length. Any advice would be greatly appreciated.