We want to sold a PDF/BOOK in a website, we are looking for a plugin can solve the next question:
We need show 5/10 pages of pdf to the user
We need a buy button for unlock the book/pdf
When user reads that pages, we need show a button for buy the complete book/pdf or another similar way...
Do you know something plugin can solve that?
Can you help us in this question?
Thank you very much and sry for my english!