Create a miniature picture for a Web page When you want to place a miniature version of a picture for a Web page, you can save a picture in GIF or JPEG format in thumbnail size. Thumbnails are 96 by 96 pixel versions of a picture that appear about one inch square online. They are commonly used on Web pages as hotspots that you can click to jump to full-sized versions of the same picture. Save a picture in GIF format. Save a picture in JPEG format