Are Your PDFs Spying On You?

That's the question asked on the LawLibTech blog.

The post discusses a number of new technologies that allow distributors of PDF content to monitor who downloads a document and control whether the recipient can copy, print, or forward it.

Not all of them are bad. But, as the author writes, "you should be aware that content providers may have more information about how you're using their content than you might have thought".