Low resolution orders may be printed as is or will be placed on hold until we receive new files, slowing your turnaround. Minimum resolution is 200 dots per inch (dpi) at actual size. Optimum resolution is 300 dpi, and not more than 400 dpi. We print 4-color process (CMYK) and as such we require files that are CMYK. Converting color from any other color space (RGB, LAB, etc.) will result in a color shift/variation. Convert all images to CMYK before submitting files for printing. When using a black background be sure to make it a rich black. The CMYK values for this are: Cyan: 60%, Magenta: 40%, Yellow 40%, and Black 100%. If you are enlarging the image files when you place them in your document then the resolution requirements change based on the size the document is placed at. Files pulled from web pages are not appropriate for use in files that are intended for printing.