what a bunch of hacks in here. "bend the pin a little" what a crock!
the O.P. PAID someone to install a "new" door and all of you insist on him/her bending the hinge pin. gives a whole new meaning to AHR (Alternate Hack Repair)
TO THE O.P. TRY TAPPING THE JAMB WITH A BLOCK AND HAMMER. if the door is closing by itself tap (whack) the bottom of the jamb.
(until the door is plumb in both directions) then install 1 longer screw in each hinge. (a couple of finish nails may be necessary)
FYI
bending the pin will cause heat build up from friction and will cause black dust to leak out of the jamb in time. (causing a mess on the paint or stain) it is a temporary fix ................but NOT a solution!