Apply signatures electronicly with an E-Pad...?

Has anyone had any luck using an E-Pad for applying signatures to
documents in Vantage? This is an area that we would like to visit,
but have not had a chance to research it much. I see that a lot of
companies are offering the E-Pads for signatures, but I didn't know
if they could easily be applied to the Shippers, Bill of Lading,
Purchase orders and Invoices with in Vantage... Any feed back would
be greatly appreciated...

Thank you,

Darrin Soukup