Flipbook is a very nice addition. I do see an issue with Full Screen which does not work, at least for me. Clicking on the full screen icon does nothing. (I see you guys are already on it, thank you!)
Please also have an option for user to download the PDF.
Hi @user2618, thanks a lot for your kind words!
Thanks a lot for bringing this to our attention! This is a really global issue, but our devs are already working on it. I’ll get back once everything’s fixed 
As for the download option, it would be great if you could share your suggestion in our Wishlist: Flipbook - Elfsight Community 
Hi @user2618, thank you for waiting!
I’m happy to say that the issue is fixed, so the full screen option should be working fine now
Could you please check it on your end?
The full screen option isn’t working for me. I’ve tested it on multiple devices. Has this been resolved?
Could you please send me a link to the page where your widget is installed?
@Max sent you a message with the link.
thanks for looking into it.
Thanks for sharing the link!
I am sorry to say, but, unfortunately, there’s nothing can be done with it 
Due to the peculiarities of the Google Sites platform, all popup and floating elements of apps are not supported. They are being converted into iframe format, this is why the Fullscreen button doesn’t work there.
I hope this explains things.
If you have any questions left, please let me know. I’lll be happy to advise!
Awe that is a shame. I enjoy the widget otherwise. Thank you so much for your response.
You’re welcome!
If anything else comes up, we’re here to help 
