Provided by: netpbm_10.0-15ubuntu2_amd64
pbmtoybm - convert a portable bitmap into a Bennet Yee "face" file
Reads a portable bitmap as input. Produces as output a file acceptable to the face and xbm programs by Bennet Yee (firstname.lastname@example.org).
Copyright (C) 1991 by Jamie Zawinski and Jef Poskanzer. 06 March 1990 pbmtoybm(1)