Whatever you want to do with your chat, the first step is always to upload it to zapptales. The procedure for this is different for every messenger. Here you can find the respective instructions: https://www.zapptales.com/en/create-chat-book/
The PDF file costs up to 500 pages of chat 16.90 € (+ 1 € for every additional 50 pages). But don’t worry, the upload and design are free. Only when you decide on a product and place an order will there be costs for you.