pbmtojbg(1) on Linux
The text 5c529541ea12, as Debian 13 (Trixie), Debian 12 (Bookworm), Debian 11 (Bullseye), Debian 10 (Buster), Debian 9 (Stretch), Debian 8 (Jessie) shipped it.
portable bitmap to JBIG1 file converter
Flags it lists
-
-b -
-c -
-f -
-q -
-r -
-v