I would like a very simple Button places on my website(s) - I am looking for a "pay per share" function. On pressing the button, the user has "liked" my page on Facebook and a DOWNLOAD OF A PDF DOCUMENT starts after he has clicked the button. In other words he has "paid" for the PDF download by "liking" me on Facebook.
To break it down:
The button would say "Pay Per Facebook Share".
1. The user clicks the button.
2. My Facebook page is "liked" and shared on the user's page with a short message saying "I just downloaded this PDF at [url removed, login to view]".
3. A PDF book is available to the user AFTER he has clicked the button, and "paid" for the PDF with a Facebook share.
I want a simple piece of code I can re-use on several different sites.