Could be one of several problems.
My door is hinge bound.
Generally when correctly fitted the hinge flaps should be flush with the surface of the wood.
If a door binds open it grasp the knob and lift up to see if a hinge is loose.
This forces the door closer to the jamb at the lock edge.
Door that is hard to close.
Restore a warped door to its normal shape by removing it and laying it flat.
If you see either the binding is probably related to the hinges.
And if the hinge pins do not bend the door should then operate satisfactorily.
Sooner or later when the door is closed on the paper it gets trapped.
You can remove the screws from one side and see if the hinge closes flat then.
Tighten or shim hinges if door still binds on hinge side if lubricating the hinge doesn t solve the problem completely but you still suspect the hinges might be the issue try visually inspecting the door jamb and adjacent wall area for any paint or varnish from your door.
Same on the edge.
You can usually see whether it is just one hinge or the door itself that is binding.
You can t pull it out.
Spray them liberally then open and close the door so the oil.
If you can t find where the door is binding open the door and hold a sheet of paper in various places in the joint.
First open the door and check the hinge mortises.
Each hinge should be shimmed equally to prevent the door from becoming hinge bound.
Hinges binding before door fully closes barry a saw will work fine in a pinch if the door jamb is perfectly straight.
That s where your problem is.
When the door has swelled place shims in the inner edge of the hinge mortise as shown in figure 7 6.
The normal procedure is to scribe the door and plane to the line with a power planer preferably a porter cable model 126 spiral cutter.
The problem is usually caused by hinge recesses cut too deep in either the door edge or in the frame.
A door that is difficult to close and tends to spring open is said to be hinge bound.
If one is loose remove two or more screws and try driving in longer screws.
Test the hinge on the latch side a door is cut at a slight bevel to make it easier to close.
It could be that the screws are a bit proud but more likely the hinges are simply malformed slightly such that they won t close flat.
In a real world they should be flush with the surface of the jamb and set in 1 and 1 2 inches.