Foxits powerful, standard-compliant PDF technology to securely display, edit, annotate, format, organize, and search PDF documents and to fill PDF forms. The PDF SDK provides a robust set of platform-independent PDF libraries that allow developers to "develop once, port many times" and to quickly and cost-effectively extend the reach of their software to multiple platforms. Optimized for enterprise-class, cloud-based, desktop and mobile applications, this SDK delivers outstanding PDF rendering and document/form modification.
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.