JSignPdf 1.6.1 + OpenOffice Add-On | 44.3/21.6 Mb
JSignPDF is a program that can help you add passwords and digital signatures to PDF documents, so as to protect your work against unauthorized usage. JSignPdf can be used as a standalone application or as an Add-On in OpenOffice. This software application has two different modes it can operate in: a simple one that consists of a few features, perfect for novice users, and an advanced view in which more experienced users can add more layers of protection to their projects. The interface is minimal and therefore, it does not get in the way of the actions you need to take.