Signing, ironically enough is not a problem for us. We have that solution already. Our customers use Topaz signature hardware to initiate the signing process. Topaz utilities are very good at this, and we're able to bind the images.
Are you aware of any decent adobe documentation on this subject? All I have seen so far is extremely scattered and not very good at getting you answers about what you can do with which API's. I feel like Adobe is trying to funnel you into using Javascript for Acrobat in the context of an Acrobat Pro Session. This isn't going to be functional for us. I feel like there has to be something better even if we have to encourage IE usuage.