JPM
From Just Solve the File Format Problem
JPM is the image format defined by Part 6 of the JPEG 2000 standard. Note that the final standards are not freely available, but the committee drafts are. JPM is an extension to the JP2 format, and was developed for multi-page documents with multiple objects per page. Like JPX, it also supports a number of alternative compression methods (JPEG, JBIG, JPEG-LS, T.45 Run-Length Colour Encoding, and for some purposes Modified Huffman, Modified READ, Modified Modified READ, JBIG2).
See also Wikipedia:JPEG 2000.
Specifications
- Compound image file format (committee draft).