palmtopnm
Convert a Palm Bitmap file to a PNM image.
TLDR
Generate the PNM image as output, for a Palm Bitmap file as input
$ palmtopnm [path/to/file.palm]
Display various information about the input Palm Bitmap file and process
$ palmtopnm -verbose [path/to/file.palm]
Generate a histogram of colours in the input Palm Bitmap file to stderr
$ palmtopnm -showhist [path/to/file.palm]
Display version
$ palmtopnm -version