A web app that takes any FlipHTML5 URL and converts it to a high-quality PDF.

Here's how it works:

- Paste the flipbook URL

- It extracts all the pages (including those in ZIP files)

- Generates a PDF with proper dimensions

- Downloads it automatically

The tricky part? FlipHTML5 encrypts their page configuration. I had to reverse-engineer their WASM decryption module to get the actual page URLs. It uses byte-inversion algorithms in a WebAssembly module - pretty clever actually.