Is there a way to save a photoshop file as a TIFF with multiple spot channels in CMYK mode?
2 Answers
Yes. merely tick the Spot Colors option when saving the Tif with Photoshop...
Whether or not those channels are visible, accessible, and separate properly in anything other than Photoshop may be another matter.
In most instances, saving as a .PSD, .PDF, or .DCS2 is best if you have spot channels.
yes - save the spot colours as new channels - you can then bring them into illustrator and they'll be there as spot layers.
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Just note that if the plan is then place that Illustrator file into a layout application, such as InDesign or XPress... a Tiff will not "round trip" any spot colors from Illustrator. You need psd, dcs, or pdf for round trip spot colors.– ScottOct 4 at 16:14