Hello, I don't know how to deal with that : when I import psd documents (CMYK) with transparent background in my Illustrator file (CMYK), sometimes, depend of the printer, I can see some kind of contour, or strokes when it comes the printing. My solution right know is to import a psd document at the same size of my whole Illustrator document to avoid this. But it is not really convenient. Can you please help me ? Thanks.