ppmtopcx(1) on Linux
The text 3c895f74d37f, as Debian 13 (Trixie), Debian 12 (Bookworm) shipped it.
convert a PPM image to a PCX file
Flags it lists
-
-24bit -
-8bit -
-packed -
-palette -
-planes -
-stdpalette -
-xpos -
-ypos