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JBIG2 Encoder
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Latest commit 0693dcd Apr 7, 2014 1 @agl Merge pull request #43 from zdenop/upstream-rpath
configure: add option '--disable-rpath' (Issue #42)
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src Merge pull request #43 from zdenop/upstream-rpath Apr 7, 2014
.gitignore Tweak .gitignore and AUTHORS file mode. Jul 3, 2012
ChangeLog Open ChangeLog for 0.29 Sep 19, 2012
NEWS implement autotools and directory structure Jul 2, 2012
README retains DPI from input images (thanks to Steven Lee) Jul 3, 2012


Welcome, gentle reader.

This is an encoder for JBIG2:

JBIG2 encodes bi-level (1 bpp) images using a number of clever tricks to get
better compression than G4. This encoder can:
   * Generate JBIG2 files, or fragments for embedding in PDFs
   * Generic region encoding
   * Perform symbol extraction, classification and text region coding
   * Perform refinement coding and,
   * Compress multipage documents

It uses the (Apache-ish licensed) Leptonica library:

You'll need version 1.68.


The refinement coding causes Acrobat to crash. It's not known if this is a bug
in Acrobat, though it may well be.


See the jbig2enc.h header for the high level API, or the jbig2 program for an
example of usage:

$ jbig2 -s -p -v *.jpg && output >out.pdf

to encode jbig2 files for pdf creation.
If you want to encode an image and then view output first to include in pdf

$ jbig2 -s -S -p -v -O out.png *.jpg

If you want to encode an image as jbig2 (can be view in STDU Viewer) run:

$ jbig2 -s feyn.tif >feyn.jb2
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