How to Sign a PDF Using Preview on Mac
No need to print, sign, and scan documents anymore. If you're using a Mac, open up the PDF in Preview and follow these simple steps to insert your signature in a matter of seconds. You'll only need to perform step #4 below once.
1. Open PDF in Preview.
Open the PDF using Preview. Click the Show Edit Toolbar icon located next to the Search box.
2. Click Signature icon.
On the Edit toolbar, click the Signature icon
3. Create signature using built-in camera.
Select the menu item Create Signature from FaceTime HD Camera.
4. Sign your name using a marker.
Take a white piece of paper or index card and sign your name using a black marker. Markers with a thick head usually work best and will be picked up more easily by the camera. Make sure the check box in the lower left corner is selected so that you don't have to repeat this step again in the future.
5. Insert signature on PDF.
On the PDF, click where you want to insert your signature. Use the grab handles to easily re-size and re-position your signature, as needed.
6. Save PDF and email.
Save the PDF and email it as you normally would. When the recipient opens the document, they'll see your signature inserted in the correct place.