If someone sent you a Prezi link and you want to download it, your ability to do so depends entirely on the set by the creator. How to Save a Shared Link to Your Account:
If official tools aren't cutting it, some community-developed resources can help, but they require more technical know-how.
You’ve just received a link to a stunning Prezi presentation. It’s dynamic, zooming, and full of critical information. Now, you want a local copy—either to edit, present offline, or simply archive. You search for a “download” button, but it’s nowhere to be found.