The converter generates images and JSON for each PDF page, that you can use to create flipbook that will load fast but will keep all the functionality as the PDF Flipbook.
For example you have PDF file 1.pdf that has 4 pages. The standard way of creating flipbook from PDF is
The converter will process the PDF and generate page image, thumbnail image and json with page data for each page. You can use those files to create a flipbook like this