How to Create a Signature and Sign a PDF With Preview

Mac OS X Lion includes a cool new feature in Preview that gives you the ability to create a digital version of your signature by simply holding a signed piece of paper in front of your Mac’s FaceTime camera.

Mac OS X Lion includes a cool new feature in Preview that gives you the ability to create a digital version of your signature by simply holding a signed piece of paper in front of your Mac’s FaceTime camera. This signature can then be applied to any PDF in Preview, ready for you to email your signed document without messing with any printed copies.

To begin, get a blank, white piece of paper and using black ink, create a signature on the paper.


Next, launch Preview and navigate to Preview > Preferences > Signatures. From this screen, click on the “Create Signature” button.


Preview will activate the FaceTime camera on your Mac and prompt you to hold the piece of paper up to the screen. You’ll want to make your signature line up along the blue line. After a few seconds, a Signature Preview will be available. When you are satisfied with the results, click on the Accept button.


Your signature will be saved, ready for you to add more, or delete existing ones.


To add your signature to a PDF, click on the Annotate button in the toolbar and select the Signature annotation tool. Then, click and drag, and release anywhere on the PDF to insert your signature. After inserting, you can still enlarge and move around the signature to your liking.

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