Limiting access to paid subscribers

  machins 07:44 AM 30 Jan 11
Locked

I would like to make a book available for download from a web site in PDF format.
How do I limit access to those people who have actually paid for the service?
Also could access be allowed from only one computer to prevent people from forwarding passwords, which I assume would be provided to paying customers, to others?

Is there a system/company/facility for this somewhere?

  Forum Editor 10:09 AM 30 Jan 11

is right on the button, and I suggest you pay particular attention to his last line.

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