jpegtopnm(1) on Linux
The text d8f7a18a03fe, as Debian 12 (Bookworm) shipped it.
convert JPEG/JFIF file to PPM or PGM image
Flags it lists
-
-adobe -
-comments -
-dct -
-dumpexif -
-exif -
-multiple -
-nosmooth -
-notadobe -
-repair -
-verbose