Tuesday, December 6, 2011

Ink Manager-How do you replace the...

CS3...I receive art from other people sometimes and I may use the Ink Manager to change the color of something in the art to print as another color when using PMS colors, like maybe with a PDF. The problem I am running into now is with this PDF, the colors used are Y and K. Im finding that there is no way to have the Y print as another color. Is there something Im missing?



Ive opened this in Illustrator and from what I can tell, this isnt even vectorized. It might have been made as two separate layers in Photoshop. Ive opened it in Photoshop and its not in layers or anything I can easily fix.
Ink Manager-How do you replace the...
And why can't photoshop change the mode to grayscale?
Ink Manager-How do you replace the...
because the areas between the black and yellow sections are not cleanly defined like with a vector graphic. To separate into two different graphics is the only way I can find to do this but its not going to look as clean. It would be easiest to just swap colors in the printing process with this image but Im not finding a way to swap a process color to a PMS color

Print separations to PDF. Open in Illy and assign the spots there.



Note: this a workaround, not something I strongly recommend but it just

might work.



Bob

Ah, didnt think of that but that seems to have done the trick for now, thanks!

Simply tell the press operators, they should

use your choice of Pantone ink instead of

process yellow. What should be the purpose of

a new doc with ASSIGNED spots?



Of course, this doesn't solve the problem of

simulating the appearance. Replacing yellow

ink by another ink will probably cause unexpec-

ted effects.



Best regards --Gernot Hoffmann

How to replace Process Yellow by something else, for instance

by Pantone 163C which has L*=75, a*=37 and b*=40.



1) For offset printing just replace the ink.



2) For the simulation of the appearance use Photoshop:



Color Settings %26gt; CMYK %26gt; Custom CMYK %26gt; Custom Inks %26gt;

Replace name by 'NewYellow' %26gt; Choose mode L*a*b* %26gt;

Replace Lab values for Yellow by 75,37,40

Save Color settings as NewYellow.csf



Open the Black/Yellow PDF in CMYK mode with these color

settings already loaded.

Assign or Convert to Profile doesn't work as expected.



IMO, all this isn't really useful. Just for the case someone

else wants to know where and how colors can be assigned

to inks.



Best regards --Gernot Hoffmann

If this is a bit of art mixed in with other art which is properly prepared so it has a spot plate in it, and you are trying to get that process yellow to print as a spot (if you followed that), AND there is no process color output, i.e. this is strictly a black and one spot job, it might be simpler to alias all of the spots to yellow to match the problem file, then as Gernot says, just tell the printer that the yellow plate is really PMS xxx.



Peter

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