go to the site linked and browse your computer for a suitable photo. Once you've picked one click Next on the bottom right hand side. Use the editing instructions section, point 1, to change the sizing. Use the Crop button to re-size your picture and choose which section you want to use then click Next. You can then go to Snapfish via this link and get 20 prints for free. You can pick up the photos at your local Jessops for free as well or enter the code SKYPHOTO at checkout to get free p&p.