It may sound crazy, but there are plenty of reasons to scan your signature and turn it into an image file. Chief among them is convenience: When you receive an electronic document (Word file, PDF, etc ...

OS X Lion has made signing PDFs easier than ever before. It's been possible to scan in your handwritten signature and sign documents in earlier versions of Mac OS X, but it was a complex process and ...

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Your smartphone just became a scanner.

Maybe your signature looks genuine. But what about the whorls on your fingertips; will they also vouch for you? You've heard of "biometric" ID systems that scan your fingerprint or other physical ...