There are 3 different upload options available.
Small - Suited for small gifting items.
Medium - Suited for regular prints and some enlargements.
Large - Suited for large prints and canvas.
The image will be resized based on your selection. By choosing a smaller upload option, the upload speed will increase, however the image quality will be reduced. You only need to use the upload size based on what you are planning on ordering. The quality of the image will not be increase by choosing a higher upload option.
Your files will not be resized when using the uploader.