From their website: "We typically like to say the higher the resolution, the better. The resolution from most current digital cameras works perfectly for our products. If your camera is 5 mega pixel or higher and you've taken the photo at the highest setting, you will not have a problem. If you are not sure about any of that, you can check the file size by right clicking on your image then click on properties where the size will be displayed. You can always go ahead and upload your photos and our intuitive image editing tool will give you a warning if the resolution is too low."
Oct 8, 2013