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:

       -e, --embedded
              Expect embedded bit stream without file header.

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

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

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

       -m, --hash
              Print a hash of the decoded document.

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

       -v, --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.

       -V, --version
              Show program version information.

       -h, --help
              Show usage summary.

REPORTING BUGS

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

       Contact  the  developers  on  Discord:  https://discord.gg/taPnFQp5gb  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.

Version 0.20                                       2023 May 19                                       jbig2dec(1)