The next release of DocuCom PDF Plus 4.0 (originally named DocuPlus) has been re-engineered to support plugins from other developers. Only basic tools will be supported by PDF Plus 4.0 -- such as link, bookmark, note (with marker), and article. All other application specific functions could be added by developers based on the requirement.
PDF 1.3 (Acrobat(TM) 4.0) compatible.
Provides basic features for general or corporate users.
Supports plugins to extend the functionality of PDF Plus.
Fully supports PDFrendering for displaying and printing.
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.