pbmtopsg3(1) on Linux
The text 1783ea72fb4c, as Debian 11 (Bullseye), Debian 10 (Buster), Debian 9 (Stretch), Debian 8 (Jessie), Debian 7 (Wheezy), Debian 6.0 (Squeeze), Debian 5.0 (Lenny), Debian 4.0 (Etch), Debian 3.1 (Sarge), Debian 3.0 (Woody) shipped it.
convert PBM images to Postscript with G3 fax compression
Flags it lists
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-dpi -
-title