The ability to edit PDF documents is a welcome development. The disappointing part is that when it comes to the signature you have to actually draw it, and it looks horrible. With Adobe, I use an image of my signature ( from a photo I took years ago) and this image of the signature is dragged to the appropriate place on the form and pasted into place. I tried this pasting procedure using the Firefox editor and it didn't work. Surely this is something that can be made possible in future?