How do I sign documents on my MacBook Air using an iPhone 14 Pro?

I have a Mac book air and an an iPhone 14 Pro. I'm able to esign documents on my phone but not my Mac book. what app should I be downloading?


[Re-Titled by Moderator]

Original Title: unable to sign

MacBook Air 13″, macOS 26.6

Posted on Sep 18, 2026 5:12 AM

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Question marked as Top-ranking reply

Posted on Sep 18, 2026 7:28 AM

You can sign a PDF on your MacBook Air using Preview, which is included with macOS. 


Preview can use your iPhone to create the signature through Continuity Markup, so you do not need to install a separate signing app for this method. (Apple Support)


Open the PDF in Preview, click Markup >> Sign, then choose Select Device and select your iPhone. 


Sign on your iPhone with your finger and tap Done. You can then place and resize the signature in the PDF.


For this to work, Apple requires the Mac and iPhone to have Wi-Fi and Bluetooth turned on, be signed in to the same Apple Account, be within about 30 feet (10 meters) of each other, and meet Apple's Continuity Markup requirements. (Apple Support)


Your MacBook Air running macOS 26.6 and iPhone 14 Pro are within Apple's listed requirements for Continuity Markup. (Apple Support)


If your iPhone does not appear under Select Device, first check those Continuity requirements. 


If you use a VPN, temporarily checking whether the problem persists without it may also be appropriate, because Apple notes that a VPN configuration can interfere with some Continuity features. (Apple Support)


Apple: Fill out and sign PDF forms in Preview on Mac

1 reply
Question marked as Top-ranking reply

Sep 18, 2026 7:28 AM in response to maiamay

You can sign a PDF on your MacBook Air using Preview, which is included with macOS. 


Preview can use your iPhone to create the signature through Continuity Markup, so you do not need to install a separate signing app for this method. (Apple Support)


Open the PDF in Preview, click Markup >> Sign, then choose Select Device and select your iPhone. 


Sign on your iPhone with your finger and tap Done. You can then place and resize the signature in the PDF.


For this to work, Apple requires the Mac and iPhone to have Wi-Fi and Bluetooth turned on, be signed in to the same Apple Account, be within about 30 feet (10 meters) of each other, and meet Apple's Continuity Markup requirements. (Apple Support)


Your MacBook Air running macOS 26.6 and iPhone 14 Pro are within Apple's listed requirements for Continuity Markup. (Apple Support)


If your iPhone does not appear under Select Device, first check those Continuity requirements. 


If you use a VPN, temporarily checking whether the problem persists without it may also be appropriate, because Apple notes that a VPN configuration can interfere with some Continuity features. (Apple Support)


Apple: Fill out and sign PDF forms in Preview on Mac

How do I sign documents on my MacBook Air using an iPhone 14 Pro?

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