> It is indeed somewhat "exotic" and "fringe", and you usually don't need it; > until you do. The original statement of Moritz Muehlenhoff, “exotic fringe format unused in practice”, turned out to be wrong. I sometimes obtain JPEG2000 files to view and, if necessary, process, e.g., after `pdfimages -all document.pdf page` on a PDF file whose pages are images compressed with JPEG2000. About a year ago, I tested saving my own postprocessed document scans as JPEG files vs. JPEG2000 files, and JPEG2000 won: on my examples, this format offered a smaller size for a comparable visual quality.
