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.
  2. Tap on Device.
  3. Toggle the Switch to enable Automatic Sleep Mode.
  1. Tap on the Settings button as indicated in the screenshot below.
  2. Tap on Device.
  3. Toggle the Switch to enable Automatic Sleep Mode.