sam2p is a Unix commandline utility that converts many raster (bitmap) image formats into Adobe PostScript or PDF files. The images are not vectorized. It gives full control to the user to specify standards-compliance, compression, and bit depths. It is common that sam2p can compress an image down to an 50kB Level1 PostScript file without quality loss, while other popular converters produce multi-megabyte output. It provides some Level3 compression filters even on Level1 devices.
