Have you created your own file?
Good for you ! We can accept your artwork via email or, if the file is too big to email then just drop it in on a USB thumb drive and we'll do the rest.
The safest and best way to send your file (regardless of the application that you created it with) is as a PDF. Saving at the "print resolution" will give the best result.
We can resize to suit, combine files for double-sided printing, recommend a stock and prepare your file for professional printing.