There is an important difference between two similar MIME types in CUPS: one is
, the other is
meant to be device-independent, job options for the file are still outside the PS file content, embedded in
command-line or environment variables by CUPS,
the job options inserted into the PostScript data itself (where applicable). The transformation of the generic
) to the device-specific version
) is the responsibility of the CUPS
filter. pstops uses information contained in the PPD to do the transformation.
CUPS can handle ASCII text, HP-GL, PDF, PostScript, DVI, and
many image formats (GIF, PNG, TIFF, JPEG, Photo-CD, SUN-Raster,
PNM, PBM, SGI-RGB, and more) and their associated MIME types
with its filters.