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

SEE ALSO

       pdfdetach(1),   pdffonts(1),   pdfimages(1),   pdfinfo(1),   pdftocairo(1),  pdftohtml(1),
       pdftoppm(1), pdftops(1), pdftotext(1) pdfseparate(1), pdfunite(1) certutil(1)

                                         28 October 2015                                pdfsig(1)