We designed Rocketbook Beacons to work with whiteboards at least 2 x 3 feet. We are looking into making different sized Beacons for different sized surfaces.
Feel free to cut your Beacons down to a smaller size for use on a smaller board. We have tested Beacons that we cut down and it does not negatively alter the scanning process or result.
If you're looking to scan sheets of paper, you may want to take a look at the Rocketbook Core, a reusable smart notebook that works with the Rocketbook app.
For additional questions or assistance, please email us at email@example.com