Welcome to the Speedsolving.com, home of the web's largest puzzle community! You are currently viewing our forum as a guest which gives you limited access to join discussions and access our other features.
If you need to resize or crop an image, there are several possibilities. Either use a program like GIMP or Photoshop, or if you don't want to install a program just use an online tool for images like http://pixlr.com/express/ and do Adjustment/Resize.