I have five PDF files I want to sell on a website. There is no sense to buy all at once. I have created a static web page with a buy button for each file/pdf. I want the user to download the file once payment is received. My pdf is cheap and therefore I want to keep the costs down, no fee per month but a small fee per purchase is ok. As I said, I have a static website and use a full shopping cart seems unnecessary (because you can only buy one of the 5 files). I looked att PayPal but I don't have time to dig in PayPal API to make a connection with the download after the payment is done and all the security. What do you recommend? I want the user to click buy button on my website, make a payment by card and be able to download the file when the payment is clear, and I have no time with a lot of coding.