jpegtopnm(1) on Linux
The text ff6e0dbde1f4, as Debian 13 (Trixie) shipped it.
convert JPEG/JFIF file to PPM or PGM image
Flags it lists
-
-adobe -
-comments -
-dct -
-dumpexif -
-exif -
-multiple -
-nosmooth -
-notadobe -
-repair -
-traceexif -
-verbose