Creating Bookmarks, TOC etc

I am an attorney and am currently annotating a protected PDF file of a trial transcript. I am trying to bookmark certain pages but can’t seem to create any. Is there something I am missing?

Hello, maybe your pdf is protected, MarginNote3 can’t edit or tag it, can you try another pdf can?

Yes you are right. The document is protected and that is the reason.

No workaround ?

All roads lead to Rome, but it is not convenient for us to discuss this issue here, you can gooogle it~