title: Open pdf with other apps
body: <p>I am displaying a pdf file in an app. I want to show "open with" option on nag bar showing apps installed on iPhone that can open same pdf and if user selects any of the app (for e.g. pdf viewer) then the pdf should get open with pdf viewer app.</p>
  
  <p>How do I do this?</p>
  
  <p>Please help</p>
  
  <p>Thanks in advance.</p>