pamtosrf
converts PAM images to SRF format used for custom vehicle icons on Garmin GPS
TLDR
Convert PAM to SRF format
$ pamtosrf [input.pam] > [output.srf]
SYNOPSIS
pamtosrf [file]
DESCRIPTION
pamtosrf converts PAM images to SRF (Garmin vehicle image) format used for custom vehicle icons on Garmin GPS devices. Part of Netpbm toolkit.