ppmtopuzz(1) on Linux
The text e098a9dd4f94, as Debian 13 (Trixie), Debian 12 (Bookworm) shipped it.
convert a PPM image to an X11 "puzzle" file
The text e098a9dd4f94, as Debian 13 (Trixie), Debian 12 (Bookworm) shipped it.
convert a PPM image to an X11 "puzzle" file