It’s also great for signing PDFs.

Here’s how to use the trackpad to enter a signature.

pop fire up PDF file in Preview.

Preview app with Signature dialog showing

Macs open PDF files in Preview by default so you should be able to double-nudge the file.

Alternatively, right-snag the file, then clickOpen With>Preview.

ClickClick Here to Begin.

Preview app with Signature dialog showing

Draw your signature with the trackpad of your laptop, and press any key once you’re done.

Click your created signature from theSignmenu, then drag it to where it needs to be within the document.

Click away from the signature to place it where you want it.

Placing a signature on a document within the Preview app

nudge the signature again and drag and drop it elsewhere.

Open a PDF in Preview by double-clicking it.

Alternatively, right-poke the file and selectOpen With>Preview.

The iPhone tab from the Signatures option in the macOS Preview app.

Select theSignicon in the menu bar.

Choose the iPhone tab.

A prompt to enter a signature will appear on your iPhone; use your finger to sign your name.

Signature screen prompt on an iPhone trigged by the Preview app in macOS.

On your Mac, selectDoneto save the signature.

If you’d like to have another go, clickClear.

It’s a similar process to using the trackpad but with some key differences.

The Done button in the macOS Preview app confirming an accepted signature input on an iPhone.

launch the PDF file in Preview by double-clicking it or right-clicking and selectingOpen With>Preview.

If you’ve already created a signature via the trackpad, you better then clickCreate Signature.

Draw your signature on paper and hold it up to the camera and the blue line.

Available signatures from the Sign menu in the macOS Preview app.

The picture will look inverted, but Preview will adjust it so it reads correctly once sufficiently scanned.

Hold the sheet of paper still for a few seconds until the Mac reads the paper correctly.

Once the image appears, clickDoneto save the signature.

Preview app with Create Signature highlighted

Click theSignicon again and choose the signature.

Don’t want to keep your signature stored on your Mac?

Hover over the signature then click thexwhen it appears.

Preview app with Camera highlighted

Drag it to where it needs to be within the document.

Click away from the signature to place it in a fixed position.

Want toedit a PDF filemore extensively than simply by signing it?

Preview app with a signature scanned in via the camera part of Signature

There are numerous ways in which to do this, as well as dedicated apps for the process.

Preview app with a selection of signatures highlighted