I have a grayscale image that was converted from RGB to grayscale for use in a process printed piece. In order to keep registration problems to a minimum, I want to convert the CMYK black to plain 100% K. Every time I replace the black, when I inspect the black area again it has reverted to 72% C, 66% M, 65% Y, and 74% K. How can I make the change stick?
#1
Copy the greyscale image and paste it in the black channel of the CMYK file
#2
Am I missing something? There is no black channel for a grayscale image... but the color keeps reverting to a CMYK format.
#3
I want to convert the CMYK black to plain 100% K.
To me, this implied a conversion to CMYK
If you are reading CMYK numbers in a greyscale file, you should set the info box to read greyscale information instead
#4
That sounds nice, but the working proof plates for C, M, & Y still show percentages and the black plate proof keeps going back to less than 100%. :0{ How do I get them to only display black for a grayscale (tif) file?
#5
What colour mode is you file in?
#6
It's in grayscale, 8 bits/Channel. That's what has me baffled... why is grayscale showing CMYK colors?
#7
What is showing CMYK values?
The info palette? Then why do you have it set to show CMYK values instead of the actual color values?
#8
The info box only shows black -- at 91%. I can't get it to go to 100%. The color picker shows (and keeps defaulting back to) 72% C, 66% M, 65% Y, and 74% K; and the proofing tools show a shade for working C, M, and Y as well as K.
#9
Read the help file on and explore the info box interface carefully.
#10