Taking a scrolling screenshot on an iPhone is no problem. Just take a normal screenshot and tap the preview before it disappears. From the top right corner, choose the “Full Page” option. Before saving, you can use markups, preview all the pages, edit, and much more. Again, there are two options available - tap either the share button from the top right corner or choose “Done” in the top left to save it into your screenshot folder depending upon your purpose of taking the screenshot.