Other options are to move the hinges on the doors and jambs to counteract the twist in the doors.
How to align interior french doors.
If the framing is dead on then it s the doors.
Measure the deviation of the french door and doorframe.
Turn all of the screws on each side of the frame clockwise to tighten them and see if the doors are aligned again.
How to align french doors.
Attach adjustable french door hinges onto the doors.
Step by step instructions on how to shim french doors so they close properly from the experts at atrium patio doors.
Turn the screw clockwise in order to lift the casement.
This is done with the following steps.
Adjust the screw until the frame is parallel to the doorframe.
Open both of the french doors to expose the screws holding the hinges in place.
Over time the screws on your hinges may come loose and cause your doors to sag.
They are available at hardware stores or online and they will retrofit into the original hinge mortise indentation on the doors and the frame.
Maybe your house has settled slightly over time or your door panel has expanded or contracted slightly due to seasonal conditions.