JPM
From Just Solve the File Format Problem
JPM (JPEG 2000 compound image) is the image format defined by Part 6 of the JPEG 2000 standard (ISO/IEC 15444-6). 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).
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Identification
JPM files start with bytes 00 00 00 0c 6a 50 20 20 0d 0a 87 0a 00 00 00 14 66 74 79 70 6a 70 6d 20.
Specifications
- ITU-T Rec. T.805
- ISO/IEC 15444-6:2013
- JPEG 2000 Committee Drafts → fcd15444-6.pdf
- ITU-T Rec. T.44: Mixed Raster Content (referenced by the JPM specification)
Software
Refer to JPEG 2000.
