jPDFWriter is a Java class library that allows you to create PDF documents by using standard Java APIs to draw text and images. jPDFWriter also extends the standard Java classes that handle printing, jPDFWriter emulates a Java printer job and its behavior. This eliminates the need for any code changes in existing printing code and even allows an application to choose where to print at runtime.
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.