When you have a PDF document that you need to sign, the process of printing out the file, signing it, scanning the signed document and sending it back can be tedious. A much more efficient solution exists through Preview.
To sign PDFs, you can capture your signature using your trackpad, the built-in camera on your Mac, or your iPhone or iPad.
To do this, follow the below steps:
1) Using the Preview app on your Mac, click the Show Markup Toolbar button (if the Markup toolbar isn’t showing), then click the Sign button.
2) Follow the onscreen instructions to create and save your signature.
Create a signature using your trackpad: Click Trackpad, click the text as prompted, sign your name on the trackpad using your finger, press any key, then click Done. If you don’t like the results, click Clear, then try again.
Create a signature using your computer’s built-in camera: Click Camera. Hold your signature (on white paper) facing the camera so that your signature is level with the blue line in the window. When your signature appears in the window, click Done. If you don’t like the results, click Clear, then try again.
Create a signature using your iPhone or iPad: Click Select Device to choose a device (if more than one is available). On your device, use your finger or Apple Pencil (on iPad) to sign your name, then click Done. If you don’t like the results, click Clear, then try again.
3) Click the Sign button, then click the signature to add it to your PDF. Drag it to where you want it, then use the handles to adjust the size.