Apologies, Pocobear, but a minor correction: The Zoom feature is under Settings > General >
Accessibility > Zoom. (It's not Accessory).
But, I mainly posted because I didn't know the iPad could do this. Kind of fun, playing with the 3-finger tap to zoom in ... tap to zoom out ... zoom in ... zoom out ...
New things to learn - every day!
But, crosj, you can turn it off if you don't like it (which I ended up doing ... 'cause I couldn't figure out why I needed it to zoom...). Just go to the Settings as outlined above.
Remember though, it's a
3 finger double tap to zoom in/out or a
3 finger tap-and-hold to move the screen around while in zoom mode. Two fingers aren't going to work...
Good luck.
Marilyn