NAME

       jbig2dec - File format converter specialized in JBIG2 decoding

SYNOPSIS

       jbig2dec [options] file.jbig2
       jbig2dec [options] global-stream page-stream

DESCRIPTION

       The jbig2dec command converts JBIG2 files to png or pbm files.

       When  passed  a  single file argument it is interpreted as a JBIG2 file stream, with either sequential or
       random-access organization.

       When passed two stream arguments, they are interpreted as the global and  page-specific  portions  of  an
       embedded  organization,  as  used  in  PDF.  If  a  particular  page references no global segment stream,
       /dev/null can be passed for the global-stream argument to request the embedded parser.

OPTIONS

       The options are as follows:

       -o file
              Store the decoded output in file.  Defaults to the input with a different extension.  Set to - for
              standard output.

       -t type
              Force a particular output file format. Supported are png and pbm.

       -d or --dump
              Print the structure of the JBIG2 file rather than explicitly decoding it.

       --hash Print a hash of the decoded document.

       -q or --quiet
              Suppress warnings and other diagnostic output.

       -v or --verbose
              Report  additional information about the decoding process.  Pass just -v for information about the
              file as it's being decoded.  This is the same as --verbose=2.   Pass  --verbose=3  or  higher  for
              debugging information.

       --version
              Show program version information.

       -h or --help
              Show usage summary.

REPORTING BUGS

       Report bugs at https://bugs.ghostscript.com

       Contact  the  developers  at  the  IRC  channel #ghostscript at freenode.net or via the mailing list <gs-
       devel@ghostscript.com>.

AUTHOR

       This manpage was initially written by Sebastian Rasmussen <sebras@gmail.com> for jbig2dec and the  Debian
       Project.