PDF Days Europe is back! Mark May 2018 in your agenda, and book your flight over to Berlin.
PDF Association was founded way back in 2006 and exists to promote the adoption and implementation of International Standards for PDF technology. If you're looking to see independent best practices and get a feel as to the way of the PDF future, then this is the conference to take the time to attend.
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.