I had produced some logo artwork in Illustrator CS on the Mac and then imported the same artwork into Photoshop CS, did some additional tweaking, and finally saved some copies of the artwork as jpeg files. Over the next couple of weeks, I used these same jpegs in various applications on both the Mac platform and Win XP. (Powerpoint, Word, etc). Nothing seemed amiss.
Last week I began to put together a Revolution Stack and tried to import one of these jpegs. I used Import As Control/image File. To my surprise, the image was not visible, although the stack inspector showed it being there. This was on the Mac running the latest version of Panther. I tried copying and pasting. Same results. Finally I tried importing the file as as a Quicktime referenced object and it appeared although it was sort of iridescent. Not exactly a color match but a rather cool effect. I tried the same exercise on Windows XP and got nearly the same result except the cool iridescence had turned into a really bad color rendition with gradient banding.
I randomly began trying to import jpegs into Revolution. Most worked as advertised. Some didn't. I began to think the problem might be related to Photoshop CS (vs. 8), but proved that not to be the case. Finally I looked at the color mode of the jpegs in Photoshop. All the ones that did not import correctly (were invisible) were in CMYK color. If you export from Illustrator into Photoshop, most likely the images will default to this mode. Photoshop saves them in the same mode and most applications play nicely with them I suppose by converting them on the fly to RGB.
To fix the problem I changed the mode of the jpeg logos in Photoshop to RGB and presto, everything worked again with the color rendition correct.
Hope this solves some others problems.
Joe Brillhart
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