How to Sign a PDF on iPhone

This article was co-authored by wikiHow staff writer, Darlene Antonelli, MA. Darlene Antonelli is a Technology Writer and Editor for wikiHow. Darlene has experience teaching college courses, writing technology-related articles, and working hands-on in the technology field. She earned an MA in Writing from Rowan University in 2012 and wrote her thesis on online communities and the personalities curated in such communities.

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Have you been sent a PDF to sign and return? Or do you want to add your signature to that artwork you have in a PDF format? Fortunately, this is easy to do with a built-in tool called Markup! For a more secure e-signature, you can pay a subscription fee to use Adobe Sign. This wikiHow article teaches you how to sign a PDF on an iPhone with Markup and Adobe Sign.

Method 1 of 2:

Using Markup

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If you quickly tap the file instead, it will open and you'll see a marker-tip icon in the top right corner. You can tap that to open Markup.

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\n"> Tap + . You'll see this plus sign in the bottom right corner of your screen. [2] X Research source Advertisement

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Tap Signature . If you already have signatures, you can drag and drop the one you prefer onto your document. If you don't have signatures, draw on the screen of your phone to create a signature that you can later drag to reposition on the PDF. [3] X Research source

Step 4 Tap Done." width="460" height="345" />

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Tap Done . It's in the top left corner of your screen and will close Markup and save your changes. [4] X Research source

Advertisement Method 2 of 2:

Using Adobe Sign

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You'll need a subscription to use this service, which offers more secure e-signatures (like certificate-based digital signatures). If you're starting an Acrobat Standard DC or Acrobat Pro DC subscription for the first time, you can get a 7-day free trial.
If you don't have the Adobe Sign app, you can get it for free from the App Store. [5] X Research source

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. You'll see the pencil icon at the bottom of your screen, towards the right.

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\n"> Tap Fill & Sign . This will allow you to add your signature to the PDF. [6] X Research source

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Select Create Signature . The screen will adjust to allow you to use the entire screen so you don't have to create a small signature. Tilt your phone in landscape mode (it'll be longer than it is tall) to continue. [7] X Research source

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Tap Draw . You'll see this option at the top of your screen, which will allow you to use your finger or stylus to draw on the screen of your phone. [8] X Research source

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The app will try to place your signature at the appropriate size and in the right spot, but you can drag and drop or pinch it to move it around or make it bigger. [10] X Research source

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