How to Fill Out PDF on iPhone: A Step-by-Step Guide

Filling out a PDF on your iPhone doesn’t have to be a headache. In fact, it can be done in just a few taps. Whether you need to sign a document, fill out a form, or add some text, your iPhone has got you covered. Let’s dive into the nitty-gritty of how to get this done, shall we?

Step by Step Tutorial: How to Fill Out PDF on iPhone

Before we begin, let’s understand what we’re aiming for here. We’ll go through the process of opening the PDF file, filling out the required fields, signing if necessary, and then saving or sharing the edited document. Ready? Let’s go!

Step 1: Open the PDF file on your iPhone

Open the PDF file you need to fill out. You can do this by tapping on the file if it’s already on your iPhone, or by opening an email or app where the PDF is located.

When you tap on the PDF, your iPhone will automatically use its built-in PDF viewer, which is a part of the Books app. This built-in feature is pretty handy, but if your PDF needs more advanced editing, you might need a different app. We’ll get to that later.

Step 2: Tap the markup icon

Once you have the PDF open, look for the markup icon. It looks like a pen tip inside a circle. Tap it to enter the editing mode.

The markup icon is your gateway to all the editing tools you’ll need. It’s usually located at the top or bottom of your screen, depending on your iPhone model and the app you’re using to view the PDF.

Step 3: Fill out text fields or add text

Now, if your PDF has text fields, just tap on them and type away. If you need to add text in other parts, tap the “+” icon and then select “Text” to add a text box anywhere on the document.

Adding text to the PDF is as simple as typing a text message. You can move the text box around and adjust the font or color to make sure it fits in just right with the rest of the document.

Step 4: Sign the PDF if necessary

If you need to sign the document, tap the “+” icon again and choose “Signature.” You can create a new signature with your finger or stylus, or select one that you’ve previously saved.

Your iPhone saves your signature so you can easily use it again. Make sure your signature is placed correctly and is the right size for where it needs to go.

Step 5: Save or share the edited PDF

Once you’re done filling out the PDF, tap “Done” to save your changes. You can then share the edited PDF via email or other apps by tapping the share icon.

It’s important to save the document after editing to make sure none of your changes are lost. The share icon usually looks like a box with an arrow pointing upwards.

After completing these steps, your edited PDF should be ready to go. Whether you’re submitting a form or sending a signed contract, you’ve done it all from the comfort of your iPhone.

Tips: How to Fill Out PDF on iPhone

  • If the built-in PDF viewer doesn’t offer the editing options you need, consider downloading a third-party app like Adobe Acrobat Reader or PDF Expert.
  • Always double-check your entered information before saving or sharing the edited PDF to avoid any mistakes.
  • Remember that some PDFs may be protected, preventing you from editing them. If that’s the case, you might need to use a computer or contact the sender for an editable version.
  • Make good use of the undo feature if you make a mistake while editing. It’s usually represented by a curved arrow icon.
  • To make your text stand out, adjust the font size and color using the options within the text editing tool.

Frequently Asked Questions

Can I edit any PDF on my iPhone?

Yes, you can edit most PDFs on your iPhone. However, some PDFs might be locked or protected, which would prevent editing. In that case, you would need to either unlock the PDF with the correct permissions or request an editable version from the sender.

Do I need to install any third-party apps to fill out a PDF on my iPhone?

Not necessarily. Your iPhone’s built-in PDF viewer can handle basic editing tasks like filling out forms and adding signatures. But for more advanced features, you might need a third-party app like Adobe Acrobat Reader or PDF Expert.

How can I add a signature to a PDF on my iPhone?

You can add a signature by tapping the “+” icon in the markup mode and selecting “Signature.” You can then sign with your finger or stylus directly on the screen. Your iPhone will save the signature for future use.

Can I fill out a PDF on my iPhone offline?

Absolutely! You don’t need an internet connection to edit a PDF on your iPhone. However, you will need internet access if you want to share the edited document via email or another online platform.

Is it secure to fill out and share PDFs from my iPhone?

Yes, it’s generally secure as long as you’re cautious about where you’re sending the document. Be mindful of sharing sensitive information and ensure you trust the recipient and the apps you’re using to edit and share the PDF.


  1. Open the PDF file on your iPhone.
  2. Tap the markup icon to enter editing mode.
  3. Fill out text fields or add text.
  4. Sign the PDF if necessary.
  5. Save or share the edited PDF.


Filling out a PDF on your iPhone is a breeze once you know the steps. It’s all about tapping, typing, and swiping – something we’re all pretty familiar with in this digital age, right? With the built-in features of your iPhone, you can edit documents on the go, no computer needed. And if you need more advanced tools, a plethora of apps is at your disposal in the App Store.

Remember those tips and FAQs; they’re golden nuggets that can save you time and frustration. Whether you’re a business professional, a student, or just someone trying to handle some personal paperwork, knowing how to fill out a PDF on your iPhone is a skill that’s sure to come in handy. So next time you’ve got a PDF that needs filling, don’t sweat it – just whip out your iPhone and get to work!

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