Thanks in advance for your help!
I have been asked to fix a customer supplied ad targeted for CMYK newsprint. It is a .psd doc.
The printer has asked that the file be supplied with the background image, which is separating as rich black, be created in 100% K as it is offsetting, and will offer better registration, etc.
This would not be a problem except there is a two color build yellow logo mark and type on the file.
When I bring in the background image as a grayscale file and flatten the file, the grayscale background image reverts to separating into cmyk again!
Is there a trick in photoshop to maintain the one channel K background and still have the color logo and type on an upper layer separate as such?