title: How can I allow users to download pictures (.gif,.png,.jpeg)?
body: <p>How can I allow users to download pictures saved on the server? The goal is to have the user click on a link and have a specified image to start to download. </p>
  
  <p>Facebook example:
  <img src="https://i.stack.imgur.com/OIpS1.png" alt="image download"></p>