75 lines
1.9 KiB
Groff
75 lines
1.9 KiB
Groff
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.TH jbig2dec 1 "2019 September 17" "Version 0.17" "jbig2dec Manual"
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.SH NAME
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jbig2dec \- File format converter specialized in JBIG2 decoding
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.SH SYNOPSIS
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.B jbig2dec
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.RI [ options ]
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.I file.jbig2
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.br
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.B jbig2dec
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.RI [ options ]
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.I global-stream page-stream
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.SH DESCRIPTION
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The
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.B jbig2dec
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command converts JBIG2 files to png or pbm files.
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When passed a single
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.I file
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argument it is interpreted as a JBIG2 file stream, with either
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sequential or random-access organization.
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When passed two stream arguments, they are interpreted as the
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global and page-specific portions of an embedded organization,
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as used in PDF. If a particular page references no global
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segment stream, /dev/null can be passed for the
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.I global-stream
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argument to request the embedded parser.
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.SH OPTIONS
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The options are as follows:
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.TP
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.BI -o " file"
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Store the decoded output in
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.IR file .
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Defaults to the input with a different extension.
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Set to \fI-\fR for standard output.
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.TP
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.BI -t " type"
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Force a particular output file format. Supported are \fIpng\fR and
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\fIpbm\fR.
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.TP
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.BR -d " or " --dump
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Print the structure of the JBIG2 file rather than explicitly decoding it.
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.TP
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.BR --hash
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Print a hash of the decoded document.
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.TP
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.BR -q " or " --quiet
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Suppress warnings and other diagnostic output.
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.TP
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.BR -v " or " --verbose
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Report additional information about the decoding process.
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Pass just \fB-v\fR for information about the file as it's being decoded.
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This is the same as \fB--verbose=2\fR.
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Pass \fB--verbose=3\fR or higher for debugging information.
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.TP
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.BR --version
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Show program version information.
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.TP
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.BR -h " or " --help
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Show usage summary.
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.SH REPORTING BUGS
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Report bugs at https://bugs.ghostscript.com
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Contact the developers at the IRC channel #ghostscript at freenode.net
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or via the mailing list <gs-devel@ghostscript.com>.
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.SH AUTHOR
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This manpage was initially written by Sebastian Rasmussen
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<sebras@gmail.com> for jbig2dec and the Debian Project.
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