'paint' greyscale photo with spot color?

As long as the number of prints isn't very large, it's probably cheaper to print

the mentioned document as a supplement of the daily CMYK stuff instead of

a special K+Spot installation.  No problem to reproduce 7734C by CMYK.

Best regards --Gernot Hoffmann

Were you able to achieve the intended result. yet?

In PS CC  Add a spot color channel in the Channels Palet when doing so you can select what type of spot color you choose to use By clicking on the square of color. 

You can also choose from any of the color libraries. 

Than paint away in that channel.

i want only the plant to be green using spot color pantone 7734 C. It must be saved either as greyscale [which is not possible i think) or duotone--which i cant seem to find a way to isolate to a discrete area.

By the way: I would recommend saving as psd (with a Background Layer) and placing that in Indesign.

But maybe you could post an image (or link to one) to illustrate the effect you are after.

Do you want to »replace« black with the spot color, mix black and the spot color, …?

Add a Spot Channel and paint on it.

But keep in mind to do knockout and bleed manually if necessary, because Spot Channels have no Layers capabilities so far (or vice versa).

Hi Tallenvt,

Are you looking to color a specific part of a black and white image or are you going to convert a colored image into black and white and then paint a specific object colored? This is an example: Combine black and white with color in a photo |

The output once saved in PDF format should carry the edits as such.

Thanks,

Akash