remove interior door jam without destroying it?

Very slowly, using putty knives. Use thin, flexible ones to break through paint (if any) and slide under the wood. Use thick, rigid ones to slide under a pry gently. Leave the skinny ones in place to protect the wood from the thicker tool. As you establish gaps, slide in pieces of thin dowel. Continue with a thin pry tool, available at any decent hardware store. Plan on doing a little spackle work. A few dents in the wood are inevitable.

Have your favorite scotch available, and keep children away, in case you invent new obscenities.

Thin, wide-bladed pry bars. Use a pin punch to set as many finish nails as possible. Pull all finish nails through the board toward the back side.

Here some handy tool types: wide bladed pry bar:

for pushing finish nails through:

for easing trim off:

for pulling nails out the back:

Obvious question:

Why aren't you making the carpenter fix it?

If he destroys the trim, it's his resp> Hi all,

It is much more work to fix a crooked jamb than to install them originally. If you hired a carpenter to install them originally, why take on the work to fix it, make him fix them.

Remove trim from one side. Use sawzall to cut exposed nails.