pjtoppm - convert an HP PaintJet file to a PPM image
pjtoppm
[paintjet]
This program is part of netpbm(1).
pjtoppm reads an HP PaintJet file as input and converts it into a PPM image. This was a quick hack to save some trees, and it only handles a small subset of the paintjet commands. In particular, it will only handle enough commands to convert most raster image files.
HP PaintJet XL Color Graphics Printer User's Guide
Copyright (C) 1991 by Christos Zoulas.