It would be helpful if students could fill out a form, once they have received their final feedback, including how they could improve their marks in the future.

These should use a template to write them onto a particular page / position.

A new PDF would then be created (overwriting the final 'response.pdf') with these comments added, as well as the teacher's comments.

Teachers should still be able to add further comments (and the student's comments re-applied if the PDF is exported again).