If your artwork contains Pantone and/or RGB colour, it is recommended that you convert it to CMYK colour mode for accurate print result.
Tutorial for Adobe Illustrator
Tutorial for Adobe Photoshop
Software Illustrator
Step 01 – Open the file
Step 02 – Select the RGB image and Rasterize it to CMYK colour mode
Step 03 – Change RGB to CMYK colour mode and Background choice Transparent than click OK
Software Photoshop
Step 01 – Open the image
Step 02 – Change the colour mode from RGB to CMYK
Step 03 – Check the Colour Mode
Step 04 – Save your image
Step 05 – When save the image you must check the ICC Profile
