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Latest revision as of 17:11, 9 October 2020
Lepton is a special-purpose compression algorithm and file format, developed by Dropbox. It only compresses JPEG files.
Files begin with
0xcf 0x84 (lepton), or
0xce 0xb6 (zlib compressed lepton).
The lepton software appears to also support a format it calls "UJG", which starts with ASCII "