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

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

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

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.

PDF documents are part of our everyday life yet sometimes it is still tricky to be able to electronically or digitally sign a PDF from your PC or Mac computer. If you are looking for a really easy ...