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I just purchased PosterSHOP Lite for use with my Encad Croma24 and I'm not sure of which file format to print my images in. I use Photoshop for Image Manipulation, but when I save my images, should it be in RGB or CMYK. I mean, considering Lite has ICC profiles to convert both formats, it really shouldn't matter, right? Or should it? Can someone please shed some light on this for me.

Thanks. :)

-- Anonymous, July 03, 1999


Please read the previous answer to the post entitled "cmyk vs rgb" on this bulletin board, it may resolve some questions you may have. In general, rgb images are better to work with because the color gamuts of rgb images are usually greater than the color gamuts of cmyk images which are limited to the gamut of the input device. As long as you use an input profile and an output profile in your workflow, it is really a matter of preference.

-- Anonymous, July 08, 1999

What you should do is what I did. First I made a poster with RGB. Then I took the same image and coverted it to CMYK in Photoshop. When I printed the poster out the image was off colored, so I made a new profile in Photoshop to match the off color. Then I corrected the Photo color in Photoshop, using the CMYK image. When I finally tweaked it to make it match my Poster color image, hands down the image looked better using the CMYK image. But when I convert the image in Photoshop, I have to change my profile, which I saved as cmyk color, in Photoshop and correct the image to the best color. It's worth the extra work, because the image is sharper and cleaner looking than the conversion I saw in PosterShop.


-- Anonymous, July 14, 1999

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