jpegtran(1) on Linux
The text 9d8bab285f5e, as Debian 10 (Buster) shipped it.
lossless transformation of JPEG files
Flags it lists
-
-arithmetic -
-copy -
-crop -
-debug -
-flip -
-grayscale -
-optimize -
-perfect -
-progressive -
-rotate -
-transpose -
-transverse -
-trim -
-verbose -
-version