It's not the first time going through the security gate at the airport or the train station that the person scanning the QR codes has a relatively hard time, they always try to zoom the document although it's at max, sometimes it works at first, sometimes it doesn't. Also looking at some menus in restaurants is pretty hard sometimes, depending on the type of design they're using.
It's a very niche case but it would be very helpful if possible.
Thanks
