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 <<<Back 1 day (to 2019/03/13)20190314 
kens i3v the Text_GRAY for -sSourceObjectICC is used for rendering, like most of the colour management parameters.08:43.56 
  If you want a CMYK PDF then you can use -sColorConversionStrategy=DeviceCMYK08:44.17 
  That won't convert text to black, but it will get CMYK text.08:44.44 
  My reply appears to have been truncated when I said "there's no way to moify j" that should have been "there's no way to modify just text"08:45.16 
i3v_ kens, do you actually mean `-sColorConversionStrategy=CMYK` ? Cause the following command seem to convert nothing at all (althouth there's no error message):23:29.09 
  gswin64c -dBATCH -dNOPAUSE -sDEVICE=pdfwrite -sColorConversionStrategy=DeviceCMYK -sProcessColorModel=DeviceCMYK -sOutputFile=out.pdf inp.pdf23:29.18 
  Meanwhile, the following version somewhat works, e.g. on "text_graphic_image.pdf" ( http://git.ghostscript.com/?p=ghostpdl.git;a=blob_plain;f=examples/text_graphic_image.pdf;hb=687e9a482e40d5e2fc6ac7aa66fb4791afccb949 ):23:29.28 
  gswin64c -dBATCH -dNOPAUSE -sDEVICE=pdfwrite -sColorConversionStrategy=CMYK -sColorConversionStrategyForImages=CMYK -sOutputFile=%1_v12.pdf %1.pdf23:29.38 
  However, even the 2nd command does not convert DeviceGray text/graphic to DeviceCMYK (e.g. in https://1drv.ms/b/s!Anqmq2Ex7NSPnTwnXowJUJFtbEQ1 , same file in Overleaf: https://www.overleaf.com/read/dgckwmhcgncf )23:31.41 
  I check this with Adobe Acrobat "Output preview->object inspector" ( https://answers.acrobatusers.com/Is-it-possible-in-Acrobat-to-check-profiles-that-are-embedded-in-images-q276640.aspx ).23:33.03 
  I've also tried to search for "CMYK" text (in a pdf, uncompressed with pdftk) - shows nothing (while both methods do show CMYK if I use `\xcolor[cmyk]{...}` in tex code ). (I've got zero experience reading raw pdf.)23:33.51 
  Am I doing something wrong?23:34.00 
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