pnmcrop(1) on Linux
The text 7635c38b6503, as Debian 12 (Bookworm) shipped it.
crop a Netpbm image
Flags it lists
-
-bg-color -
-bg-corner -
-black -
-blank-image -
-borderfile -
-bottom -
-closeness -
-left -
-margin -
-reportfull -
-reportsize -
-right -
-sides -
-top -
-verbose -
-white