JSignPdf is a Java application which adds digital signatures to PDF documents. It can be used as a standalone application or as an Add-On in OpenOffice.org. JSignPdf is open-source software and can be freely used in both private and business sectors.
Current version provides:
visible signatures - image and/or description located visualy in a PDF file (page and position can be specified) several different keystore types (as provided by Java) timestamps from authority in signature (TSA) certificate validation through CRL and/or OCSP setting certification level setting hash algorithm PDF encryption and setting rights comprehensive Swing GUI support for batch processing (controlled by command line arguments, without GUI)
New Release page number out of the range means the last page in the visible signatures (contrary to the first one used in previous versions)