How to properly export pdf separating cmyk images and grayscale images

[chucho. caba]

Hi everyone! Hope somebody catch this bottle at sea 🙂 [Click and drag to move]

Just want to understand how can I export my pdfs to the printhouse separating cmyk images and grayscale images. They keep telling me that grayscale images appear in CMYK, as the normal colour images.  I double checked the resources manager window and the images appear ok. I'm not sure how to fix it. Does it have to do with the setup or is it something else? Any ideas? Thanks!

1. I have the pdf export setting as in (img 1).

Grayscale images continue to appear in CMYK when export to a new pdf. As the image on the right in this img I'm sharing. (img 2)  I don't know, does it have to do with the way I'm placing them? What you guys think, still a fix in the horizon that I haven't seen?

 

Thanks a lot!

[walt.farrell]

In your second screenshot, look at the Context Toolbar. You'll see a "K Only" button. You need to use that.

 

[chucho. caba]

Thanks Walt! Now is ready!