I have never done any kind of transfer, but i have a customer who wants to get an edible transfer made at a local bakery of a photo of her. my question is do i just place the image onto the cake or is there more to it and how soon is too soon in advance for her to have the image made. Please Help

I make the images here at my store and I have made some like 2 weeks before I needed them. I keep mine in like a plastic sleeve to keep air away and turn them upside down so that the light does not affect the colors on the image. hope this helps

thanks