How to add a text note to invoice?

I like to add some custom text on the invoice in 2 or 3 lines, to add some extra info.

I dont see a field for notes on the form for invoice.

How to add that?

You can use the “Remarks” field under the Accounting section

or “Terms and Conditions” field which can be shown in the customer print as well

or you can create your own custom field using the customize form