Kami is a PDF annotation app
Students and/or teachers can open a PDF with the app to edit and/or annotate
https://www.youtube.com/watch?v=4nqIv8wzd0A
To access Kami from Chrome go to the upper toolbar
Select the Kami Chrome Extension
Login with Google
Open a document from the choices shown on the screen or create a document
Kami Help Documents
https://help.kamiapp.com/en/collections/1694733-getting-started-with-kami