Saving annotations so they can't be changed

I watched this great Kami video that explained how I could mark and save so students couldn’t change my annotations or questions. But I don’t have that option under save. Any ideas? The save section happens around 15:30.

Did you try exporting with “Flatten Annotations” as explained here? If not try that, and you can get back to me by typing @yhefter and I will attempt to help you to the best of my ability.

Welcome to Kami community where everyone is here to help. :)))
Have a great day… TTYL bye