pbmtogem
Convert a PBM image to GEM .img format
TLDR
Convert a PBM image to GEM IMG format
$ pbmtogem [input.pbm] > [output.img]
Convert from stdin$ cat [input.pbm] | pbmtogem > [output.img]
SYNOPSIS
pbmtogem [pbmfile]
DESCRIPTION
pbmtogem reads a PBM image as input and produces a compressed GEM .img file as output. GEM (Graphics Environment Manager) was a GUI system used on Atari ST computers and early IBM PCs.If no input file is specified, the program reads from standard input. The output is always written to standard output. This tool does not support compression of repeated lines.Part of the Netpbm toolkit.
INSTALL
sudo apt install netpbm
sudo dnf install netpbm
sudo pacman -S netpbm
sudo apk add netpbm
sudo zypper install netpbm
brew install netpbm
nix profile install nixpkgs#netpbm
CAVEATS
Does not support compression of repeated lines in the output. The GEM IMG format is largely obsolete and mainly of historical interest.
HISTORY
pbmtogem was created by David Beckemeyer and Jef Poskanzer as part of the Netpbm suite.