Your book preview appears here
Upload a WhatsApp chat export and it will be typeset — bubble for bubble — into A5 pages you can print and bind.
1In WhatsApp, open the chat and export it — iPhone: Export Chat → Attach Media. Android: ⋮ → More → Export chat → Include media.
2Drop the .zip WhatsApp gives you here — no need to open it first
3Look through your book, then download it as a PDF — the file any print shop can print