Fortunately, technology has come a long way, and it's now possible to sign a PDF document digitally — no more printing or scanning required.

Don't have a printer and scanner? You still can easily sign a PDF file, no matter the operating system you're running.

Digitally Sign PDF Documents on Mac OS X Lion with Preview The revamped Preview app in Mac OS X Lion includes the extremely useful Digital Signature feature built right in.

One thing that has gotten easier, tech-wise, is signing documents. Now you can sign digitally instead of waiting for mail.