title: Set duration of iAd's Pre-Roll Video Ad
body: <p>I have successfully implemented an iAd Pre-Roll Video Ad.</p>
  
  <p>Is there a way to set the duration of the Pre-Roll Video Ad?</p>
  
  <p>In this Apple document, <a href="https://developer.apple.com/iad/resources/Implementing-iAd-in-Your-iOS-Apps.PDF" rel="nofollow">Monetizing your iOS apps with iAd</a>, it says that we can set the duration to 15, 30, or 60 seconds.</p>