JBIG (JBG) is an industry standard lossless compressed file format for bi-tonal (black and white), grayscale and color images.  Blaze ImgConvert's JBIG support is comprehensive and handles the various flavors and bits per pixel as defined by the specification including progressive, where you can store and send multiple representations of images at different resolutions without any extra storage overhead.  In order to achieve highest compression ratios available by the JBIG format, Blaze ImgConvert also takes full advantage of all the functional blocks of this robust standard including the Adaptive Arithmetic Encoder, the Adaptive Template Block, the Typical Prediction Block, the Resolution Reduction Block, and the Deterministic Prediction Block.  Saving images in a JBIG format results in smaller image files sizes when compared to other industry standard compressed formats such as CCITT G3 or G4.  
For JBIG files, you can read and write the following bits per pixel: 1, 2, 3, 4, 5, 6, 7, 8, 12, 16, 24, 32.