Close the hinge side gap by bending the knuckles.
How to bend hinge to open gap on door.
Remove the hinge pin and bend the door side knuckles toward the door handle.
If the door swings open on its own unscrew the bottom hinge and the middle hinge if it has one.
This is the distance the edge of the hinge is set back from the door face.
Next move the hinge out a little away from the doorstop and screw it back on.
Repeat the test while watching each hinge for movement.
Is easy to notice.
Hinge backset while not part of the hinge itself it s important to know this dimension for your hinge size calculations.
If you feel play in the door one or more hinges are loose.
And that means the gap between the hinge leaves varies just a little which can have an impact on the fit of your doors.
Set an open ended adjustable wrench also called a crescent wrench just larger than the hinge knuckle.
Loose hinges are caused by screws in the door or the door jamb losing their grip.
Getting back to your question of how to adjust gaps once a door is hung i learned a hinge leaf bending trick from a gary katz article long ago hanging a new door in an old jamb aug 1999.
Use a hinge leaf as a template to make a cardboard shim that you can slip behind the leaf.
To shrink a gap on the latch side hold the head of a nail set between the leaves and gently close the door.
This will close the gap.
If a hinge leaf is recessed below the surface of the jamb or the door edge the door will not close well and the hinge will bend when you close it.
A difference of 1 16 in.
To adjust hinges so that a door will fit better in a jamb and maybe eliminate scraping on the head or the strike jamb i bend hinges.
That means the swag or bend in a hinge is never identical from one hinge to the next.
Check to see the door stays open and that it still shuts properly.
Unscrew the top door hinge and add the other 2 cardboard cutouts.
This will leave a little gap where the hinge was chopped in.
To check for loose hinges open the door a few inches then grip the latch side edge of the door and lift up.