secure2trust and document signing
secure2trust offers document content signing using any X509 digital
certificate. Uniquely, secure2trust enables content set as read-only to
be signed. Multiple signatures may be added and all signatures are retained
when content is edited and saved, affording a signature-based trail of
usage.
On the right are two examples of "identity" smartcards containing digital certificates that are supported by secure2trust for digitally signing and accessing documents.

