I was wandering if it is possible to do timestamp with SHA-256 digest. I couldn’t find any properties on TimestampSettings class that would change the default behaviour of sending SHA-1 document hash.
We are currently using code as in your example
but corporate timestampserver provider disabled SHA-1 and we are looking for solution that could send SHA-256 digest and do the timestamp.
We have already logged an enhancement request as PDFNET-41994 in our issue management system for the implementation of SHA-256 support. We have linked the ticket with this forum thread so that you will be able to receive a notification once it is resolved. Please be patient and spare us some time.