Long story short my asshole ex-roommate owes me money for final utilities and some other crap and I'm trying to collect all of it at once. My plan is to photoshop the amount due on the utility bills to include the extra money he owes me. My problem is I have no idea how to use Photoshop. Anyone got any pointers on how to do this? I have all of the bills in a PDF so that should make things easier. Thanks!