PDF Pro supports horizontal as well as vertical page scrolling in a PDF document. To change scroll direction, just follow the instructions:

  1. In PDF Pro tap on the Settings button as indicated in the screenshot below. Tap Settings button in PDF Pro on iPhone
  2. Tap on Scroll Direction. Tap Scroll Direction in settings on iPhone
  3. Choose your preferred Scroll Direction. Choose horizontal or vertical scroll direction on iPhone
  1. In PDF Pro tap on the Settings button as indicated in the screenshot below. Tap Settings button in PDF Pro on iPad
  2. Tap on Scroll Direction. Tap Scroll Direction in settings on iPad
  3. Choose your preferred Scroll Direction. Choose horizontal or vertical scroll direction on iPad