This job can be a hassle especially if you have painted trim.
Gap on latch side of door.
I notice from your picture that the bottom hinge side of the door looks like it has no clearance.
The installer should have adjusted the frame with shims to leave about a 1 8 in.
If you have gaps around an outside door you could be losing up to 15 percent of the money you spend heating your home by allowing heated air to blow outside.
To readjust the door frame you have to remove the trim along the latch side to get at the shims.
Gap along the latch side about the thickness of two quarters coins.
This may be due to the fact that the hinges were inset too far into the door and or frame.
If the gap on your door exceeds this.
You could remove the door trim on the catch side and see if you can figure a way to move the jamb over closer to the door.
If this is the case it is a good bet that this is part of the reason for the excessive gap on the door latch side.
If i need to shrink a gap on the hinge side i pull the hinge pin in the offending area and gently bend the barrels of the jamb leaf slightly toward the jamb with a small adjustable wrench.
Other than replacing the entire door frame and door it will be difficult to make a satisfactory repair.
Reducing door gap in a latch side.
Sometimes the gap is far too wide.
As the hinge leaves bind on the nail set they will spread slightly which will push the door over and close the gap on the latch side.