Type of Printing Help Color This printing option is for full color printing on white or metallic substrates (or clear substrates when you want the ink to be transparent). If this option is selected you must make sure your graphic files are setup in CMYK mode. Color with White This printing option is for full color printing on clear or metallic substrates. On clear substrates it is used to minimize the transparency of the ink so that it is more bold. On metallic substrates it is used to mask the metallic properties in areas you do not wish to be refective. If this option is selected you must make sure your graphic files are setup in CMYK mode and if possible add a spot channel called "spotwhite" which contains all the area you want printed with white ink. If you do not know how to setup your graphic files this way you may allow our graphics team to take care of it. Simply put a detailed description of where you would like spot white to appear in the customer comments section. Black This printing option is for text mostly. If this option is selected you must make sure your graphic files are setup so the black printing is 100% black (in CMYK mode). Double Sided This printing option is for full color printing on both sides of clear substrates (double-sided printing). If the option is selected you must make sure your graphic files are setup in CMYK mode and if possible add a spot channel called "spotwhite" which contains all the area you want printed with white ink. Also add 4 more spot channels for the sticky side printed image, call these "SubCyan", "SubMagenta" and so on. If you do not know how to setup your graphic files this way you may allow our graphics team to take care of it (there may be a fee for this service).