Having difficulty fixing my sagging door by bending its hinge
In all my years of hanging doors, prehung and many from scratch, where the hinges were cut in as well as all the other hardware, I have never needed to bend a single hinge. If the sagging is from loose screws, they need tightening or replace with a longer screw for better grab. Sometimes the hinge need a shim placed behind it cut from cardboard and build up the thickness as needed to get the gap right. Even hinge makers supply the precut cardboard to use as shims. At least with Stanley commercial grade hinges. But there would need to be a really good series of pictures presented to suggest where the shims need to go or even where the problem area might be. But these two tricks are all I ever used to remedy a door that was originally set well in it's opening. If it was not set right to begin with, usually other factors need to be addressed as well