jbig2dec [options] file.jbig2
jbig2dec [options] global-stream page-stream
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.
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.
Report bugs at https://bugs.ghostscript.com
Contact the developers at the IRC channel #ghostscript at freenode.net or via the mailing list <firstname.lastname@example.org>.
This manpage was initially written by Sebastian Rasmussen <email@example.com> for jbig2dec and the Debian Project.