Legacy ImageMagick Discussions Archive

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• identify -list format

Chances are JPEG is not listed or if it is its mode is --- signaling the JPEG delegate library was not included when ImageMagick was built. Grab the source distribution, unpack, and run the configure script. The last 40 lines or so will mention whether the JPEG delegate library was validated. If not, check the config.log file for the reason why the validation failed. Fix the problem and rerun the configure script until the JPEG library is validated.