If you want to keep a paperless office, you need to be able to scan documents. Previously, you needed a scanner to do this. But today you can use your iPhone to scan documents quickly and easily. With Continuity Camera you can scan directly into your Mac using your iPhone. You need to make sure you have both Wi-Fi and Bluetooth enabled with both devices and that they are using the same Apple ID and latest macOS and iOS.
Having trouble with Continuity Camera? Check out this page: Use Continuity Camera on your Mac.