Changing your image in a project to black & white from colour is a simple process and is done on the fly while creating your project. To change your image click on the Edit button
The edit options will then become available which you can experiment with and press Reset to return back to your unedited image.
Once your image opens, click on the Black & White button
The change that occurs to your image is only applied to that image in your project. You can still use the same image elsewhere in your project and it will be in its original state. If you are choosing multiple digital print sizes you will have to apply the change to every digital print size you order if you require the same effect on each size. The change is not applied to the original image uploaded and saved in your albums.