You can upload your artwork (.jpg/ .png/ .gif/ .pdf/ .psd) on the product details page in section 3 - Select Imprint Details. We do have a 1 MB limit on file uploads.
If your file surpasses that limit you can place your order without uploading your logo. Reply to the Order Confirmation with your artwork attached. Don't worry, we will not charge or process your order until you receive and approve of the virtual proof.
Our Design Studio only allows flat image files (.jpg/ .png/ .gif)