Here are some tips for using our laboratory tshirt 1. Upload an image you try to be good resolution PNG format this format allows you to have the image background to transparent (without a white box) the image depending on its size it can take on up and see. 2. Any image can add a border you just select the image click on TEXT Option and choose the color and width.For more info visit: www.facebook.com/kinguniforms.net, www.twitter.com/tshirtpr