The Shape of Everything
A website mostly about Mac stuff, written by Gus Mueller
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August 24, 2007
(This post is from my old, old, super old site. My views have changed over the years, hopefully my writing has improved, and there is now more than a handful of folks reading my site. Enjoy.)

If you find yourself making some graphics in Adobe Illustrator and using them in a Cocoa application as a PDF, but you're noticing that what you set to be black is now grey...

CMYK stuff

The top circle is the original shape in Illustrator. The second one is a copy and paste from Illustrator to Preview, with the "Document Color Mode" set to CMYK. The last circle is a copy and paste from Illustrator, with the color mode set to RGB; and it looks like the original shape (yay!). You probably want to make sure you've got that set if you are running into this problem (this setting is located under Illustrators' File menu).

Hopefully this will save someone some pain later down the road.