Configuring the palm rejection is only necessary if you're writing with a non-Bluetooth powered captive stylus or your fingers.
GoodNotes provides an intelligent automatic palm rejection algorithm to assist with your note-taking. It allows you to rest your hand on the screen while you're writing and will block most unwanted marks caused by your palm.
If you're using the Apple Pencil or the Logitech Crayon, you won't need the palm rejection in GoodNotes, since the stylus itself already has built-in palm rejection.
- Open a document and tap on the pen icon twice to bring up the Pen Tool settings
- Tap on "Stylus and Palm Rejection"
- Choose the writing posture at the bottom that matches your own writing posture
Setting the right sensitivity
If the palm rejection is more sensitive it will detect smaller unwanted inputs from your fingers or your hand and will reject them.
Low = Only large input will be rejected, such as your whole hand/palm
Medium = Medium sized input will be rejected, such as a couple of fingers that rest on the screen
High = The palm rejection is very sensitive and should reject anything that isn't a stylus tip
If you're using a stylus with a very thin tip, you'll need to lower the sensitivity of the palm rejection. If it is set to "High" it will likely reject the stylus' input.