jbig2dec

Section: jbig2dec Manual (1)
Updated: 2023 May 19
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NAME

jbig2dec - File format converter specialized in JBIG2 decoding

 

SYNOPSIS

jbig2dec [options] file.jbig2
jbig2dec [options] globa-stream pag-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 rando-access organization.

When passed two stream arguments, they are interpreted as the global and pag-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 globa-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 <g-devel@ghostscript.com>.

 

AUTHOR

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

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Index

NAME

SYNOPSIS

DESCRIPTION

OPTIONS

REPORTING BUGS

AUTHOR