JBig2(第二代JBig)图像格式的编码程序。 JBig2用于编码二值图象，从而获得比G4编码更好的压缩能力。此代码包功能： 1.生成Jbig2文件，或者用于嵌入PDF中的数据流。2.多页文档压缩。

Jbig2解码代码包。包中有样例程序。 jbig2dec is a decoder library and example utility implementing the JBIG2 bi-level image compression spec. Also known as ITU T.88 and ISO IEC 14492, and now included by reference in Adobe s PDF 1.4.

big2enc is a fairly fully featured JBIG2 encoder. JBIG2 encodes bi-level (1 bpp) images using a number of clever tricks to get better compression than G4. ,big2enc is a fairly fully featured JBIG2 encoder. JBIG2 encodes bi-level (1 bpp) images using