Can you explain a bit more about what you are doing and what happens?
I suspect it'e either the PDF export settings you are using, or your color settings are differnt between the two versions.
Well during export to pdf the white balance of some pictures changes. This results in a pdf where white backgrounds of product shots become a different color. I clearly see it has something to do with the white balance but don't know what - tried already to export it as RGB of CMYK profile but the not all images of the same color coding (mix of RGB and CMYK saved visuals are used in one document).
When I save the files as idml and open it in CS5, the problem is gone. So since the switch to CS6, I have this issue and as you might imagine, this is not very pratical.
OK it sounds like this could be due to differences in the color settings, with one version ignoring embedded profiles and the other preserving them. Are you seein this only with newley made files, or older files from CS5 as well when opened in CS6.
Comparing .eps to .jpg output isn't terribly helpful. The .eps might have a clipping path to remove the background.
In CS5 go to Edit > Color Settings... and make a note of the Settings file chosen, the profiles, and the Color Management Policies. Also check to see if any ofht eboxes are checked for the various warnings. Now compare those settings to the same ones in CS6. I think you are going to find differnces in either the profiles, the policies, or the warnings.
If it is a logo you should not use a jpg anyway. If possible try to get the original vector file and place an ai or if an ai is not available a vector eps.
How color changes in the jpg image depends on the color profile and space this image has and how it is converted to the output profile. But I would not recommend to use jpg at all for logos.
Thanks Peter, it was the color setting in CS6 that was wrong.
I know comparing EPS and JPG are not the best examples but the JPG gave the right impression on how colors came out.
I should have thought about the color settings before but sometimes these logic sense fail to come when in the middle of it.