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This is an interesting approach to DRMs ... it's like a watermark, but the watermark is your name.

The above screenshot is from the PDF version of the upcoming Agile Web Development with Rails book. They have these PDF-aware gerbils at The Pragmatic Programmer that generate (and regenerate upon request when a new version is out) PDFs on the fly, with your name on the bottom of each page.

Having your name plastered all over the place is one sure way to discourage sharing it with friends or on file sharing networks. Imagine what would happen if the publisher found out htat you’re the guy responsible for the book ending up on BitTorrent?

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Read more from this blogger: Best. DRM. Evar!