Pdfconverter
EDocProcessor PDFSealer v.6.34 Build 5032
This programs seals PDFs with digital signatures and encryption. It supports standard Windows certifcates management for signing PDFs, and you can create self-signed certificates. Features: I. Digitally Signing PDF using your certificates managed by
FreePDF Creator v.2010
Use FreePDF Creator to create secure PDF documents from any printable Windows application - over 300 at last count.