JPEG 2000 Compound Image
|Joint Photographic Experts Group
1.0 | 1 Vote
What is a JPM file?
A JPM file is an image saved in a variant of the JPEG 2000 (.JP2) image format. Typically, JPM files are multi-page documents comprised of multiple, layer-based images. JPM files are uncommon, so most image viewers cannot open them.
JPEG 2000 is a raster image format that was meant to improve upon and replace the .JPEG format. In part six of the document defining the JPEG 2000 format, the Joint Photographic Experts Group defined a variant of the JPEG 2000 format that could be used to store multi-page, layer-based images. This variant is often referred to as the JPEG 2000 Compound or JPM format.
However, neither the JPEG 2000 nor the JPM format caught on among developers or users. Thus, JPEG 2000 (or JP2) files are uncommon, and JPM files are even more rare. For this reason, not all image viewers support the JPEG 2000 format, and even fewer support the JPM format.