- Save the document from inkscape
foo.svg - Convert the svg to pdf :
rsvg-convert -f pdf -o foo.pdf foo.svg - Convert the pdf to a cmyk pdf
gs -o foo-cmyk.pdf -sDEVICE=pdfwrite -sProcessColorModel=DeviceCMYK -sColorConversionStrategy=CMYK -dOverrideICC foo.pdf
Check conversions : pdfimages -list foo-cmyk.pdf