pnmtoxwd
Convert PNM to X Window Dump format
TLDR
Convert PNM to XWD format
$ pnmtoxwd [input.pnm] > [output.xwd]
Specify visual class$ pnmtoxwd -directcolor [input.pnm] > [output.xwd]
SYNOPSIS
pnmtoxwd [options] [file]
DESCRIPTION
pnmtoxwd converts PNM images to X Window Dump (XWD) format. Part of Netpbm toolkit.
PARAMETERS
-pseudocolor
Use PseudoColor visual.-directcolor
Use DirectColor visual.
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