Preflighting

[woopit@adobeforums.com]

I was checking a pdf file that was sent to me today using Preflight in Acrobat 7.0. It was telling me that the images (they are photos) in the file were not CMYK-so I assumed they were RGB. So as a test I created a photoshop file with an RGB image. I saved as a tif and imported into a Quark doc and then made a Press Quality pdf using distiller. When I Preflighted this test doc Preflight said that the image was CMYK. My question is... why? Will this file separate into 4 plates when printed? And if so, then I can't understand how that other file was saved that Preflight sees it as not being 4/C. It did say that there were not any spot colors so that is not the issue. Any pointers here for me would be greatly appreciated. Thanks.

[Jon_Bessant@adobeforums.com]

Try saving the RGB image in Photoshop and then re-running the test
(smile)...

By default, Quark will automatically convert RGB TIFF and JPEG to CMYK
in the postscript streamm by default ...

Give it a whirl ...

Jon

[peter kleinheider]

Hi Woopit

Under the Options Menu of the Preflight Tool you can go in the setup and activate the option to get more details on flagged objects.

If you now perform a preflight you get a triangle for every flagged objects. Opening the triangle reveals additional information about the object. Here you can find out which colorspace the image is defined in.

Peter

[woopit@adobeforums.com]

So Jon, according to what you have told me I can then assume that the file that I flightcheckd that said that there were non-cmyk images must have been created in Photoshop? Or perhaps an RGB Illus file? Thanks.

Peter- I will check out the options menu tomorrow when I have access to Acrobat7 again. Thank-you for your input.