By default PDF Pro prevents your device from automatically turning off the display. To turn on automatic sleep mode follow the steps below.

  1. Tap on the Settings button as indicated in the screenshot below. iPhone showing PDF Pro library with Settings button highlighted
  2. Tap on Device. iPhone showing Settings menu with Device option
  3. Toggle the Switch to enable Automatic Sleep Mode. iPhone showing Device settings with Automatic Sleep Mode toggle
  1. Tap on the Settings button as indicated in the screenshot below. iPad showing PDF Pro library with Settings button highlighted
  2. Tap on Device. iPad showing Settings menu with Device option
  3. Toggle the Switch to enable Automatic Sleep Mode. iPad showing Device settings with Automatic Sleep Mode toggle