I already have the PDFs and a separate team handling site design, payments, and hosting, so what I need from you is the functional engine behind a personalised-print book shop, built on a completely custom platform (no WordPress or Shopify layers). Here’s the workflow I’m aiming for: • A visitor browses my proprietary PDF library, picks the files they like, arranges them in any order, and immediately sees a real-time flip-book preview. That preview must support zoom in/out, page-by-page navigation, and a clean full-screen mode. • Before checking out, the visitor types or selects (both text fields and drop-down inputs) their name and a custom book title. Your code injects those values into a standard cover template, generates the cover PDF, and slides it into the front of the preview. • From the chosen page sequence you automatically build a table of contents and place it after the cover. • Once the cover, table of contents, and interior pages are stitched together, the finished book preview and its cover thumbnail need to appear on the website instantly so the shopper can proceed to payment (handled elsewhere). Deliverables I expect from you 1. Source code for the PDF sequencing, cover generation, TOC creation, and flip-book preview components. 2. Clear integration instructions or an API layer so my web team can drop the module into the live site. 3. A short test suite or demo page proving it works end-to-end with at least three sample PDFs. 4. Generate a book PDF based on selection. Everything should be clean, lightweight, and ready for our courier-print workflow once the payment gateway team hooks in.