Contents Ghostscript comes with a lot of filters to render PostScript/PDF files back and forth. Please refer to the HTML documentation or try man gs. ESP Ghostscript provides pstoraster too. Description pstoraster CUPS uses pstoraster filter to convert PostScript to a generic raster image format that is acceptable as an input to drivers for non-PostScript printers (e.g., from ). It is built and installed only if is found.