Accepted File Resolution
For an image to print properly, the image resolution must be at least 300 dots per inch (DPI) at the final output size.

Accepted Colour Mode
Color mode must be in CMYK to be print ready. If files are submitted using any other color mode, such as RGB or Pantone, the files will be converted to CMYK during prepress. Conversion from one color standard to another may result in a color shift or color drop during the printing process.