[cups-devel] When to use -dNOMEDIAATTRS when calling Ghostscript

[Till Kamppeter]

Hi,

what is the original intention of -dNOMEDIAATTRS on Ghostscript calls 
for CUPS filters or drivers?

Do I have to call it from all Ghostscript calls out of the CUPS filter 
chain, independent which driver type (Raster, Ghostscript built-in, 
...), because the pdftopdf filter is taking care of the page size and 
other media attributes? Or only for Ghostscript calls with "cups" output 
device (Ghostscript call in gstoraster filter)?

Especially there can be the following calls of Ghostscript:

- gstopdf: Call of Ghostscript with "pdfwrite" output device to turn 
PostScript input data to PDF to feed it into pdftopdf
- gstoraster: Call of ghostscript with the "cups" device to turn PDF 
output from pdftopdf into Raster for rasterto... CUPS printer drivers or 
IPP Everywhere printers
- gstopxl, foomatic-rip, ...: Call of Ghostscript with a built-in 
printer driver, like "pxlmono" for example, to turn PDF from pdftopdf 
into the printer's native language.

In which cases I have to supply -dNOMEDIAATTRS?

    Till