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You are here: Home / Tutorials / How to Sign a PDF on iPhone: A Step-by-Step Guide for Users

How to Sign a PDF on iPhone: A Step-by-Step Guide for Users

January 13, 2026 By Matthew Burleigh

How to Sign a PDF on iPhone

Signing a PDF on your iPhone is a breeze. All you need is the built-in Markup tool in the iPhone’s Mail app or the Files app. Just open the PDF, tap to use Markup, and select the signature option. Draw your signature with your finger or stylus, then place it where needed on the document. Save or share your signed PDF, and you’re all set!

Step-by-Step Tutorial: How to Sign a PDF on iPhone

You can easily sign a PDF on your iPhone using the Markup feature. This guide will walk you through the entire process, so you can add your signature to any PDF document right from your device.

Step 1: Open the PDF

Find the PDF you need to sign, either in the Mail app or the Files app.

When you receive a PDF through email or have one saved in your Files app, tap to open it. This allows you to access the document directly on your screen.

Step 2: Access Markup

Tap the Markup icon, usually represented by a pen tip within a circle.

The Markup tool is your gateway to editing PDFs. By selecting this, you unlock a range of editing features, including the ability to add text or shapes.

Step 3: Add Your Signature

Select the ‘+’ button, and then tap ‘Signature’ to create or use a saved signature.

You can draw your signature using your finger or a stylus. If you’ve saved a signature before, it will be available here for easy reuse.

Step 4: Place the Signature

Drag your signature to the desired location on the PDF.

Once you’ve created your signature, drag it to where you want it on the document. You can resize it by dragging the corners.

Step 5: Save or Share

Tap ‘Done’ to save your signed PDF or share it directly through email or other apps.

After placing your signature, you can save the PDF back to your Files app or share it instantly. This ensures your document is securely signed and ready for its intended recipient.

After completing these steps, your PDF will reflect your signature in the designated spot, making it official and ready for sharing or storage.

Tips for Signing a PDF on iPhone

  • Ensure your iPhone is updated: Always keep your iOS updated to avoid any compatibility issues with Markup.
  • Practice your signature: Use a steady hand when drawing your signature for the best results.
  • Store your signature: Save your signature in Markup for quicker access next time.
  • Double-check placement: Make sure your signature is placed correctly before saving.
  • Use a stylus: If available, a stylus can help in creating a more precise signature.

Frequently Asked Questions

Can I save multiple signatures on my iPhone?

Yes, you can store multiple signatures by creating them in the Markup tool, allowing easy access for future documents.

What if I make a mistake while signing?

You can easily delete and redo your signature by selecting it and tapping the ‘Delete’ option in Markup.

Is Markup the only way to sign PDFs on an iPhone?

No, there are many third-party apps available, but Markup is the simplest built-in option.

Can I resize my signature?

Yes, you can adjust the size of your signature by dragging the corners after placing it on the PDF.

Do I need an internet connection to sign a PDF?

No, using Markup to sign PDFs does not require an internet connection.

Summary

  1. Open the PDF.
  2. Access Markup.
  3. Add your signature.
  4. Place the signature.
  5. Save or share.

Conclusion

Signing a PDF on your iPhone is as easy as pie, thanks to the handy Markup tool. Whether you’re on the go or simply prefer using your phone, this feature ensures that you can sign documents without any fuss. While there are other apps out there, the built-in Markup tool remains a user-friendly and efficient way to get the job done.

Remember to keep your iPhone updated for the best experience, and don’t hesitate to practice your signature to make it look just right. With these steps and tips, you’ll be signing PDFs like a pro in no time.

If you’re interested in exploring more iPhone features, keep diving into available resources. There’s a treasure trove of capabilities that can make your digital life smoother. Happy signing!

Matthew Burleigh
Matthew Burleigh

Matt has been working with WordPress and creating content using this powerful content management system for years. While he has written about many other tech topics, WordPress is one of his favorites.

You can read his full bio here.

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