We require no less than 300dpi, with a transparent background. The designs must be set up on the sheet size you have chosen and saved preferable as a png. If you require assistance with preparing the sheet you can select this option at checkout. The fee we presently charge for printing is for prints that are “ready to print”. We can always help you out on the first one so that you know what to do in the future but our business is “printing” and it takes time to assist with designs and set up which is why we charge a fee for that.