Converting PDF to PureEdge and modifing the PureEdge form

I have been looking for a program to convert PDF files (both types) to PureEdge, and be able to modify the PureEdge form (like adding a signature block). I can only find stuff for lotus forms, and was told that files used for PureEdge Viewer were not compatible with lotu开发者_如何学Cs forms. Any help would be very appreciated.

PureEdge viewer is a program that allows one to view .xfdl documents which were created using IBM Lotus Forms. The two programs are definitely related.