JohnRH
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Accurate black versus rich black in pdf export
JohnRH replied to JohnRH's topic in [ARCHIVE] Publisher beta on macOS threads
Hi Wim, Yes the file was CMYK/8. I've been putzing around and have come up with: File colour profile was Coated GraCol 2006 (ISO 12647-2-2004) and if I change the profile to match that in Acrobat Pro then I get my real 100% black with CMY reading 0% as it should. If I spec the file as US Sheetfed Coated v2 then in Acrobat with the same profile I get 72%C, 66%M, 66%Y, 78%K. I spent a couple of decades in Prepress in a large, up-to-date Printshop and we used the Gracol profile which worked best with our computerized platesetter. Not sure why this is happening, hopefully the developer guys will come up with a solution. Seems like a colour profile issue. Maybe we need an "accurate black" choice in Publisher preferences similar to InDesign. trial (Coated GraCol).pdf trial (US Sheetfed).pdf -
I created a document and placed some text. Text was selected and specified as (0%C, 0%M, 0%Y, 100%K) Upon opening pdf in Acrobat (Pro) black appears as rich black (72%C, 66%M, 66%Y, 78%K) not true black (100%K). Any thoughts? my error or Publisher glitch?