Create a new course Enrol at least three students Create an assignment Upload a PDF as the student submission for two of the students Log in as a teacher and view the assignment Enable 'quick grading' on the grading overview page Make sure the "Launch PDF editor..." is showing for those students that were used to submit the PDF assignments. ...and it is not available for those who have not made a submission Click on each 'Launch PDF editor' button in turn - make sure the editor appears - but do NOT add any annotations Close the Annotate PDF popup and check there is no 'Unsaved changes' marker beside any of the buttons Navigate away from the page and make sure there is no warning about unsaved changes. Go back to the grading overview, click again on the 'Launch PDF editor' button and close the popup Click on 'Save all quick grading changes' Turn off 'quick grading' Check that no 'View annotated PDF...' button appears and no link to download the annotated PDF file Log in as a student and check they also cannot see the annotated version of the PDF As a teacher go back to the grading overview page and turn on 'quick grading' Click on 'Launch PDF editor Add some annotations to the PDF Close the Annotate PDF popup Check the 'Unsaved changes' text appears Try to navigate away from the page - ensure the standard 'unsaved changes' warning popup appears Click on 'Save all quick grading changes' Turn off 'quick grading' Check the 'View annotated PDF...' button now appears for that student Click on the 'View annotated PDF...' button and check it shows the annotations you made Log in as the student and check that they can also see the annotated PDF (both online and download) Repeat the above tests with the following extra settings: blind marking enabled group submission enabled (each user in the group should have the 'Launch PDF editor...' button and see the same annotated PDF) attempts reopened (check the most recent attempt is shown by 'Launch PDF editor...' and that no button is shown when the attempt is reopened but not yet resubmitted) Note that, as with all group submission 'quick grading', annotations against one group member are not transferred to others in the group (if this is wanted, the user has to use the 'grade' page and select 'Apply grades and feedback to entire group').