At this time, you can upload only JPEG (.jpg) and GIF (.gif) files. If your image uses a different extension, be sure you don't simply change the file extension to ".jpg" or ".gif," because our servers will reject the file. You must use image-editing software to convert your file to either a JPEG or GIF format before uploading it to your page.
Please note: Be sure the name of the image file you want to upload includes no special characters, symbols, or spaces. Image file names may contain only upper- or lowercase letters, numbers, underscores (_), dashes (-), and periods (.), and cannot start with a period.