PTroller(1) on Linux
The text 5aad5aed3789, as Debian 11 (Bullseye), Debian 10 (Buster), Debian 9 (Stretch), Debian 8 (Jessie), Debian 7 (Wheezy) shipped it.
Merge several images into a single one
Flags it lists
-
-f -
-h -
-o -
-q -
-x