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>>>>> tag v1.26.5+1 for changeset b74429b0f5c4
author Franz Glasner <fzglas.hg@dom66.de>
date Sat, 11 Oct 2025 17:17:30 +0200
parents b50eed0cc0ef
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1 jbig2dec is a decoder library and example utility implementing the JBIG2
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2 bi-level image compression spec. Also known as ITU T.88 and ISO IEC
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3 14492, and included by reference in Adobe's PDF version 1.4 and later.
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5 The basic invocation is:
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7 jbig2dec [-o <output file>] file.jbig2
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9 It also supports separate 'global' and 'page' streams, generally
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10 extracted from some embedded format:
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12 jbig2dec [-o <output file>] <global_stream> <page_stream>
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14 The program is only partially functional at this time, but should be
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15 useful in some limited contexts. We welcome files that the decoder can't
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16 handle, or renders incorrectly.
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18 More information about jbig2dec and updated versions are available from:
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19 https://jbig2dec.com/
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21 A set of example files is available from
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22 https://git.ghostscript.com/?p=tests.git;a=tree;f=jbig2
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24 Development source code is kept in a git repository at:
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25 http://git.ghostscript.com/?p=jbig2dec.git
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27 Report bugs at https://bugs.ghostscript.com
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28 For security issues please use the "Security - Other" product,
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29 and for normal bugs the "jbig2dec" product.
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31 Contact the developers on Discord: https://discord.gg/taPnFQp5gb
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32 or via the mailing list <gs-devel@ghostscript.com>.