dear R experts---I am struggling with the requirements to prepare my files for my printers. I am printing in 2/2 format, which means cyan and black for me, which they take from my color-separated pdf files. R comes into play, because it produces all the figures that are embedded in my book (pdflatex).
now, TeX has no problems producing CMYK files. However, R produces RGB files (for Cairo-device pdf files). The problem is that cyan in R's RGB is (0,255,255), and unfortunately when this is converted into CMYK, and from then into color-separated plates (using adobe acrobat), it maps not into 100% cyan, but into much [but not full] CMYK cyan and a little bit of yellow. there was a discussion of this about 10 years ago on r-help, when it was still not possible. are there any hacks that get R to output CMYK pdf files? I don't need it to be general. I just need the cyan color to map perfectly. I wonder whether I should switch to the tikzDevice. (I know it exists, but I have not used it yet. is it reliable and is it reasonably well comparable to pdf device capabilities) advice appreciated. sincerely, /ivo welch ---- Ivo Welch (ivo.we...@gmail.com) http://www.ivo-welch.info/ [[alternative HTML version deleted]] ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
