README 1.2 KB

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