Change RGB images in PDF to CMYK

I'm using Acrobat 8 Pro.
I've received several PDFs (one-page ads) that contain RGB images. What's the best way to convert them to CMYK?
I know how to do the edit image thing that opens the image in Photoshop, but I can't figure out how to get the "edited" image back into the PDF after I convert it to CMYK in PS.
Or is there an easier way? When I get a PDF with spot colors, I just go into the ink manager thing and convert all spots to process. Anything similar for converting RGB?
TIA,
Marlene

Given you have Acrobat 8 Pro you shouldn't be doing such a complicated sequence of steps...
Instead, either
- use the (interactive) color convert feature (Advanced/Print production/Convert colors...)
- or try Preflight (Advanced/Preflight...) which beginning with Acorbat 8 offers "fixups" - with which many things can be achieved, among others also color conversion (same underlying 'machine' as the aforementioned "convert colors" - but with the possibility to save and reuse configurations for the conversion).
- same as before but even go a step towards automation: set up a batch sequence, and process a whole folder with PDFs; or create a Droplet in Preflight, and drag'n drop your PDFs onto the droplet.
Olaf Druemmer

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But making that change in the flyout seems to have it showing properly.
Thanks!

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Input image:
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Edit > Transparency Blend Space > Document RGB

Help converting RGB Images to CMYK?

I am working with a CMYK Freehand design, and it includes a
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Should I be working with a CMYK cut out image? If so, how do
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GmR wrote:
> I am working with a CMYK Freehand design, and it
includes a cut out image on
> top layer. The image is in RGB. When I export it, I am
getting a colour shift
> on the transparent areas.
>
> Should I be working with a CMYK cut out image? If so,
how do I convert my RGB
> image to CMYK, keeping the transparent areas of the cut
out?
>
> Help much appreciated (ASAP)
> Regards
How are you creating the transparent areas? Are you using an
alpha
channel in the bitmap? I stopped doing that when I noticed
color
shifting (even in grayscale reproduction) similar to what you
get when
using the raster effects. But I do miss using it because it
is
convenient and sets up nicely.

Change RGB images in PDF to CMYK

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