title: How to preview PDF using PDF Viewer on an Grails Application
body: <p>I'm a novice Grails Programmer.I have 2 use case :</p>
  
  <ol>
  <li><p>render image file show on GSP Page.</p></li>
  <li><p>render PDF file and show on PDF Viewer integrate with GSP Page.</p></li>
  </ol>
  
  <p>Can anyone provide examples of how to do this?</p>