X509 V3 digital signature. This signature can be used to sign microsoft outlook e-mails and when used in conjunction with PKI One's "Squiggle" product (available from PDF Store) will allow the user to sign any PDF documents.
Our digital signature comes either as a software certificate (softcert)
which can be downoladed onto a hard diskdrive or other medium or contained
on a smartcard (which is more secure)
OK, so you want to stamp your document. Maybe you need to give reviewers some advice about the document's status or sensitivity. This tip from author Ted Padova demonstrates how to add stamps with the Stamp Tool along with related comments.