Make Editable JPG

[dav.id]

I'm having a tough time figuring out how to make an imported JPG that is shaped like a simple rectangle into an editable form. It's easy to use the Transform features, but the distort feature doesn't give me enough points to make my shape as distorted as I would like. "Make Editable" is greyed out. I don't want to change what is in the jpg image, just make an editable path along all 4 edges. Any ideas?