title: Getting GPS metadata from a picture with Paperclip
body: <p>I have a question about Paperclip. Many modern cameras and phones add GPS metadata to a photo when taken:</p>
  
  <p><img src="https://i.stack.imgur.com/oomtC.png" alt="geotagging"></p>
  
  <p>Users of my Rails app can upload photos and manually add the location data to them. However, this sucks as users don't want to enter that: they want it to be there <strong>automatically</strong>.</p>
  
  <p>Can, and how can I get GPS metadata from a photo (always JPEG) with Paperclip and Ruby on Rails? Can it be done with Paperclip or do I need another gem?</p>