pnmtofits
Convert PNM images to FITS astronomy format
TLDR
Convert PNM to FITS format
$ pnmtofits [input.pnm] > [output.fits]
SYNOPSIS
pnmtofits [file]
DESCRIPTION
pnmtofits converts PNM images to FITS (Flexible Image Transport System) format used in astronomy. Part of Netpbm toolkit.