If you are using our online designer, this will all be handled for you.  If you prefer to provide us a file directly please keep the following in mind.

Convert all fonts to Outlines/Curves where possible, if not include all fonts used in file.
Design your file in CMYK MODE. Specify Pantone (PMS) Color matches when required.

RGB files are primarily for video display but will be converted (possible color shift) in your proof.

You can also Design your files at 25% (600 dpi) of final output size.
(Indicate final output enlargement size percentage when submitting file).

For the best results on printing Solid Blacks
use C=20% M=20% Y=20% K=100%.

Save all raster files with maximum quality setting checked and minimum file compression.