PDF Tools Addon

This addon optimizes PDF flipbooks by saving flipbook pages as images and JSON on the server. It can also generate new optimized flipbooks directly from the PDF.
Flipbooks generated with PDF Tools will have PDF text layer and PDF links working, but they will load faster than PDF Flipbooks because pages are loaded directly from the server, so there is no need to load PDF and process it on runtime. Also there is no need to load PDF.js scripts.
Once PDF flipbook is optimized with PDF Tools, there is no need to keep PDF on the server, which is the only true protection for your PDF file.