NAME¶
pdfsig - Portable Document Format (PDF) digital signatures tool
SYNOPSIS¶
pdfsig [options] [PDF-file]
DESCRIPTION¶
pdfsig verifies the digital signatures in a PDF document. It also
displays the identity of each signer (commonName field and full distinguished
name of the signer certificate), the time and date of the signature, the hash
algorithm used for signing, the type of the signature as stated in the PDF and
the signed ranges with a statement wether the total document is signed.
The signer certificate validation uses the trusted certificates
stored in the Network Security Services (NSS) Database. The NSS Database is
searched for in the following locations:
- If the -nssdir option is specified, the directory specified by this
option.
- The NSS Certificate database in the default Firefox profile. i.e.
$HOME/.mozilla/firefox/*.default.
- The NSS Certificate database in /etc/pki/nssdb.
OPTIONS¶
- -nssdir [prefix]directory
- Specify the database directory containing the certificate and key database
files. See certutil(1) -d option for details of the prefix. If not
specified the other search locations described in DESCRIPTION are
used.
- -nocert
- Do not validate the certificate.
- -dump
- Dump all signatures into current directory.
- -v
- Print copyright and version information.
- -h
- Print usage information. (-help and --help are
equivalent.)
AUTHOR¶
The pdfsig software and documentation are copyright 1996-2004 Glyph & Cog,
LLC and copyright 2005-2015 The Poppler Developers -
http://poppler.freedesktop.org
