While it would be nice for gnupdf to someday be able to do this, I will point out that there are a number of non-cost (free) tools including Adobe Reader that can verify PDF signatures AS WELL AS open source (free) libraries and tools such as iText that can do so as well.
Leonard -----Original Message----- From: pdf-devel-bounces+lrosenth=adobe....@gnu.org [mailto:pdf-devel-bounces+lrosenth=adobe....@gnu.org] On Behalf Of Krzysztof Zelechowski Sent: Wednesday, January 26, 2011 9:38 PM To: pdf-devel@gnu.org Subject: [pdf-devel] wish: verify signed PDF documents There is no free utility to verify signed PDF documents AFAICT. Please consider implementing one. Best regards, Chris