This class supports reading the PNM image format into System.Drawing.Image and writing it back to PNM format. It makes it possible to inter convert different image file formats including PNM.
Library for decoding obscure graphics formats, such as Targa (.TGA), Sun raster (.RAS, .SUN), ZSoft (.PCX), Netpbm (.PPM, .PGM, .PBM, .PNM), SGI, and DICOM.