Adding additional signature to Adobe diocument proving impossible

I need two signatures on a pdf document and have managed to impose one from a saved image, however, the other signature is proving more troublesome.

I've sent it to the recipient and tried to add the other signature but using a stylus or mouse is no use as the signature looks nothing like it should.

Is there an easy way to impose the second signature without scanning or printing or will some kind of stylus pen do the trick?



Thanks