This item is designed for RGB-to-CMYK workflow which is one of the standards in print industry. It provides maximum creative freedom and allows to achieve stunning effects that otherwise would not be possible. This means you can edit this design as usual. When you finish editing your file simply make a copy of it. Then merge all layers into one and go to Photoshop Menu – Mode – CMYK Color. If it asks “You are about to convert…” etc. then click OK. That’s it! Happy designing!