Hello.
Digital Signatures become more common these days.
It becomes a part of electronic documents.
Digital Signatures are most common in use with Interactive documents
or in Work Flow scenarios.
I bring you here a screen cast of using Digital Signature inside an Open XML document
witch was generated on SAP server.
this is another screen cast of a series of screen casts on using Open XML and SAP.
enjoy watching.
http://www.youtube.com/watch?v=B6Q7yAWATxM
Ronen Almog