Open the Notes app
Create a new note or open an existing one
Tap the camera icon
Tap Scan Documents
Position the document in view of the camera
Wait for the iPhone to capture the scan automatically
Adjust the corners if needed
Tap Keep Scan
Repeat for additional pages if needed
Tap Save when finished
To scan from Files, open Files
Tap the More button
Tap Scan Documents
Capture the document and save it
To scan a QR code, open the Camera app
Point the camera at the QR code
Tap the notification that appears