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diff mupdf-source/thirdparty/jbig2dec/jbig2dec.1 @ 2:b50eed0cc0ef upstream

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ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4. The directory name has changed: no version number in the expanded directory now.
author Franz Glasner <fzglas.hg@dom66.de>
date Mon, 15 Sep 2025 11:43:07 +0200
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+++ b/mupdf-source/thirdparty/jbig2dec/jbig2dec.1	Mon Sep 15 11:43:07 2025 +0200
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+.TH jbig2dec 1 "2023 May 19" "Version 0.20" "jbig2dec Manual"
+
+.SH NAME
+jbig2dec \- File format converter specialized in JBIG2 decoding
+
+.SH SYNOPSIS
+.B jbig2dec
+.RI [ options ]
+.I file.jbig2
+.br
+.B jbig2dec
+.RI [ options ]
+.I global-stream page-stream
+
+.SH DESCRIPTION
+The
+.B jbig2dec
+command converts JBIG2 files to png or pbm files.
+
+When passed a single
+.I 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
+.I global-stream
+argument to request the embedded parser.
+
+.SH OPTIONS
+The options are as follows:
+.TP
+.BR -e ", " --embedded
+Expect embedded bit stream without file header.
+.TP
+.BI -o " file" ", --output" " file"
+Store the decoded output in
+.IR file .
+Defaults to the input with a different extension.
+Set to \fI-\fR for standard output.
+.TP
+.BI -t " type" ", --format" " type"
+Force a particular output file format. Supported are \fIpng\fR and
+\fIpbm\fR.
+.TP
+.BR -d ", " --dump
+Print the structure of the JBIG2 file rather than explicitly decoding it.
+.TP
+.BR -m ", " --hash
+Print a hash of the decoded document.
+.TP
+.BR -q ", " --quiet
+Suppress warnings and other diagnostic output.
+.TP
+.BR -v ", " --verbose
+Report additional information about the decoding process.
+Pass just \fB-v\fR for information about the file as it's being decoded.
+This is the same as \fB--verbose=2\fR.
+Pass \fB--verbose=3\fR or higher for debugging information.
+.TP
+.BR -V ", " --version
+Show program version information.
+.TP
+.BR -h ", " --help
+Show usage summary.
+
+.SH 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>.
+
+.SH AUTHOR
+This manpage was initially written by Sebastian Rasmussen
+<sebras@gmail.com> for jbig2dec and the Debian Project.