In macOS Catalina, the Preview app has a new feature that makes it easier to sign PDFs and other documents by leveraging an iPhone or an iPad running the iOS 13/iPadOS operating system.
Rather than using the Trackpad to create a signature, or scanning a piece of paper, you can connect to your iPhone or iPad to sign there using either a finger or an Apple Pencil.
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In the Preview app, under Tools > Annotate > Signature > Manage Signatures > Create Signatures, there is a new option to choose to create a signature with an iOS device. Clicking on this option lets you select an available iPhone or iPad to use.
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Devices running iOS 12 will show up in this list, but creating a signature only works on a device running iOS 13. Selecting an iPhone or iPad with iOS 13 will pop up a simple signature interface on the device in question, where you can sign with a finger on the iPhone or a finger or Apple Pencil on iPad.
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After you've signed, tap the done button, and your signature is instantly made available in the Preview app as an option to be inserted into your documents.
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We needed to have the devices unlocked to get the signature interface to pop up, but this may be a bug that will be addressed in a later beta.
You can already sign PDFs right on the iPhone or iPad using Markup features, but the new Preview option is a useful, streamlined way to get a signature on a document if you start the process using a Mac.
Top Rated Comments
But this analog signing method is just last century.
Opinion;:
macOS under the Preview app. should support signing using digital signatures, even if one does not own a certified public-key/private-key pair (thus, signing with self as the certificate authority).