carol,
Thank you for sharing your experiences with collecting assignments digitally. I would suggest asking students in your college course to submit a copy of their paper that has been saved as a PDF- this is a 'Save as' option within the software. It locks the document, preserving the formatting so you can grade the page set up. If they also attach a Word version, you can use that for your mark-ups.
Wishing you continued success in the classroom.
Theresa Schmitt
