I am having the hardest time keeping my submission file clear and crisp after I make it the dimensions that are required. The 640px. I am using Photoshop to upload my image onto the Threadless model template. Once it is one and clear and in place I then am resizing it to the 640px. Right after doing so it shrinks the image drastically and becomes out of focus. I am puzzled and don't know what I am doing wrong. Any help would be AWESOME!!!
I am so excited to upload designs but I am getting very discouraged.