I previously laid out a very simple way to take screenshots on an iPad. However, a reader made me aware of another way of doing it using an Apple Pencil – thanks Wab95!
Taking a Screenshot With The Apple Pencil
To take a screenshot using an Apple Pencil, swipe from the bottom left corner of your iPad to the top right. The image you’ve captured then appears and can be edited. I tried this with my Logitech Crayon and it worked with that too, so it seems you can do this with any compatible stylus.