Offset printing: Process graphics must be in CMYK and not RGB or PMS. We are not responsible for color shifts that may occur when PMS colors in files or RGB files are converted to CMYK. Refer to the Pantone 4-Color Process Guide and Pantone Color Bridge for assistance with process color builds. Never rely on color monitors for accurate color representation.Digital printing: Digital printing is more cost effective on smaller quantities and has shorter turn-around times. It also gives you the opportunity to print variable text or images. Since digital printing simulates PMS colors using four color process toner based inks, color matching to the Pantone Matching System is less accurate. Large solid areas and screen tints produce better on an offset press. Digital printing will not match offset printing.