Users can add annotations and highlights to PDFs that are embedded in citations. To launch PDF annotator, the user clicks the "View PDF" link under the file:
The PDF file opens in a new window. Users may toggle back and forth between setting annotations to Private or Public. This gives instructors the option to enable or disable Public Annotations on a per PDF/Citation basis.
The chat box icon opens the comments box:
The instructor annotates the PDF and can set this individual comment as Public or Private:
The student annotates the pdf by either posting a new comment, or directly replying to the instructor's comment. The student also has the option to make their comment Public or Private: