The user who created a binder or a user with collaborator-level access to the main file in a binder can add a note to that binder using the Binder Notes feature. Any user reviewing the binder can read this note.

Notes can only be added to a binder and are only visible when the binder is in review. Notes are persistent: if a binder is taken out of review and then sent back for review, any note attached to it reappears.