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How to Sign PDF on iPhone and iPad? Best Tools in 2024

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In the past, PDFs had to be printed, signed manually, scanned, and resent to the appropriate parties. This is a lengthy procedure that may delay crucial business dealings. But nowadays, important papers are being delivered digitally to get fast and easy signatures from everywhere.

With the rapid technological advancements, the digital signing of PDFs is not limited to laptops and PCs. You can do this on your iPhone, iPad, and other smart devices. However, if you're unaware of How to Sign PDF on iPhone, don't worry. In this article, you'll discover the finest ways and tools to sign a PDF on your

how to sign pdf on iphone

Part 1. Benefits of Signing a PDF on iPhone/iPad

Some of the benefits of signing a PDF on iPad and iPhone are:

  • Since you always have your smart device, you can sign a PDF wherever you are.
  • No need to print and sign the document physically.
  • It is fast and quick.

Part 2. How to Sign PDF on iPhone and iPad via Markup

Looking for the best way to add a signature on iPhone and iPad? You'll get the answer in this section! Apple has integrated a built-in Markup feature in iOS and iPadOS, which you can access throughout the operating system. You can find it in the Mail app's PDF viewer, the Files app's document preview, and the Photos app's editing tools. Even while modifying a screenshot, you have access to it.

Typically located in the upper right corner, the Markup symbol resembles a little pen. Markup tool has a sub-feature called Signature. The signature function on the iPhone and iPad allows users to create and save signatures. However, if you're unaware of how to use this feature on your iPhone and iPad, the following sections will help:

1. Mail

Mail is a built-in app in your Apple smart devices that you can use to manage your emails. Unlike Gmail, Outlook, and others, it is not mailing service specific, which means you can use any email account you wish on Apple's Mail app. Besides, the Markup tool allows you to add signatures to your PDFs.

To understand how to access and add a signature on PDF using Mail, follow the steps below:

Step 1 Launch the Mail app on your iPhone/iPad and compose an email.

Step 2 Now, tap on the Link symbol to attach the PDF you wish to sign. After that, open the PDF by clicking on it.

Step 3 Tap on the Pencil icon in the top right and click on the + button.

Step 4 Next, select Signature and create or use an existing signature. If you haven't signed a document, you'll need to create a signature with your finger.

Step 5 After that, place the signature on the signature field on your PDF and tap on Done.

tap on done

2. Apple Books

Apple Books is another built-in app that supports the Markup tool. You can use Apple Books to manage the books and other PDFs on your iPhone and iPad. It allows you to edit and sign the PDF.

To understand how to sign a PDF using Apple Books, follow the steps below:

Step 1 Navigate and open the PDF you wish to sign on your iPhone and iPad and tap the Share icon.

Step 2 Find Books in the app icons and tap on it to open the PDF with Apple Books.

tap on books icon

Step 3 Tap on the Pencil icon from the top right and locate the signature field on your PDF.

Step 4 Now, tap + button and select Signature from the popup menu.

select signature

Step 5 Afterwards, select an existing signature or create a new one with your finger to sign the PDF. Once signed, tap on Done.

3. Other Build-in Apps That Support Markup

There are multiple other apps on iPhone and iPad that supports Markup, such as Files and Photos. You can also sign PDFs using those apps without any complication.

To understand how to sign a PDF on an iPad using Markup, follow the steps below:

Step 1 Go to the app that supports Markup, such as Files, Photos, etc., on your iPhone or iPad and open the PDF.

open pdf

Step 2 Tap the Markup/Pencil icon in the top right and hit the + button.

Step 3 Tap on Signature from the menu and create a signature with your finger. You can also select an existing signature if you're not doing it for the first time.

Step 4 After that, place the signature in the required field and tap on Done.

tap on done

Part 3. How to sign PDFs on iPad and iPhone Using Third-Party Apps

Wondering how to sign PDFs on iPad and iPad using third-party apps? The following tools are your best bet:

1. PDFelement

PDFelement is the finest tool when it comes to PDF-related tasks. With its vast library of features, you can edit, annotate, split, merge, convert, and perform other tasks on your PDFs. It has an OCR tool that allows you to extract the get from PDF to make it editable and searchable.

download on app store download on google play

Besides being the best PDF editor, it allows you to add a signature to your PDF. You can take a picture of your signature using the PDFelement app and then utilize it later by dragging and dropping it into PDF documents or freely drawing your signature onto them. Moreover, the interface of PDFelement is simple, which makes it easy for novices to use.

To understand how to sign a PDF document on iPad using PDFelement, follow the steps below:

Step 1 Get the PDFelement on your iPhone or iPad through AppStore and launch the app. Go to the Files screen and open your PDF.

tap on

Step 2 Select the pen icon and the last writing tool. Tap on Create a Signature to open the signature window. You can either draw the signature or upload a picture of your signature and tap on Done to proceed.

tap on done

Step 3 After that, place the signature in the required field to sign your PDF. You can also resize it with the help of its blue borders.

place your signature

2. Adobe Fill & Sign

Adobe Fill & Sign is another tool on our list to add a signature to your PDF. With this tool, scanning and adding a signature to a document is a breeze. It allows you to scan the document with your iOS device's camera. With its built-in OCR tool, you can fill in the fields on the scanned documents.

Moreover, Adobe Fill & Sign allows you to create a signature by drawing. You can also save the signed documents and send them to others through email.

To understand how to sign a PDF document on iPhone via Adobe Fill & Sign, follow the steps below:

Step 1 Install Adobe Fill & Sign from the AppStore and launch the app. Tap on Select a form to fill out.

ap select a form to fill out

Step 2 Select from the PDF file to navigate and upload the

Step 3 Select Create Signature from the drop-down menu and create your signature. Once done, tap on Done.

select create signature

Step 4 Now, tap on the required signature field and select the Pencil icon from the top menu to select and place the signature you just created.

3. PDFexpert

If you want to sign PDF documents but also want to use your iPhone or iPad to manage PDFs in the future, then PDF Expert could be a good choice for you. This is because, in addition to tools for annotation, this PDF signature program also comes with other features that assist in the creation, editing, and execution of other PDF-related tasks.

The annotation tool is particularly helpful in this regard, which makes it simple to place digital signatures wherever you want on the PDF. In addition, the intuitive user interface makes it simple even for inexperienced users to use this tool.

To understand how to sign PDF on iPad free using PDFexpert, follow these steps:

Step 1 Install PDFexpert on your iPad or iPhone and launch the tool. Open the PDF using PDFexpert.

Step 2 Choose Signature from the submenu after selecting Fill & Sign from the top toolbar. Tap the "Create New Signature" button to create your signature.

Note: Choose Customer Signature from the drop-down if someone will sign the document. This is a one-time signature that cannot be copied to other papers and is not kept in the app once it has been used.

Step 3 Now, you need to draw the signature. You may choose the colour and thickness of the signature by using the top toolbar. Then tap the area on the PDF where you want to place the signature.

Note: You can relocate and adjust the signature size inside the document.

place your signature

4. DocuSign

DocuSign is one of the most widely used electronic signature applications. The ability to digitally sign and share papers from any location and on any device is only one advantage. You can legally sign papers whether you're using an iOS device, a computer, or an Android smartphone.

Moreover, with features like reminders and real-time push alerts, etc., managing agreements is a breeze even while you're on the road.

To understand how to sign PDF on iPhone or iPad using DocuSign, follow these steps:

Step 1 Get DocuSign on your iPhone or iPad and open the PDF after launching the app.

tap on +

Step 2 Follow some on-screen instructions and fill in the required fields. Then, hit the Start button.

Step 3 Choose the Sign button in yellow. Now, create your signature by taking a photo or designing the signature you like.

Step 4 Hit the Create button and tap on PDF where you wish to place the signature on your PDF. After that, tap on Finish and pick Confirm Signing to complete the signing procedure.

5. SignNow

SignNow is a complete electronic signature system that prioritizes efficiency and collaboration at an affordable price. It can create PDF files, convert, edit, fill out forms, and more. By partnering with USLegal exclusively, you'll have instant access to hundreds of legal forms and packages, streamlining your business and legal activities even more.

Signing, document sharing, and custom templates can all be done collectively using this tool. The cloud-based solution allows access to files from any device at any time.

To understand how to sign a PDF document on iPhone via SignNow, follow these steps:

Step 1 Download and install SignNow on your iPhone or iPad and launch the app. Hit the Create button from the bottom panel to upload your PDF.

tap on create

Step 2 To add a signature to the uploaded PDF, choose Signature from the editor's bottom toolbar and tap on the desired location on the PDF.

Step 3 Now, tap on the Add Signature button. Now, draw your signature on the screen. When you're finished, tap Done to add your signature to the PDF.

tap on done

Part 4. A Quick Comparison

Adobe Fill & Sign
Pricing $29.99 per year Free $39.99 per year $120 per year $8 per month
Signature Ways Picture and draw Draw Picture and draw Picture and draw Picture and draw
Signature Requesting No No No Yes Yes
Signature Resizing Yes Yes Yes Yes Yes


Signing a PDF from your iOS smart device is convenient since you have your smartphone with you every time. However, if you're unaware of How to Sign PDF on iPhone, we hope this article has been helpful, and you've found the right tool for the job. Moreover, if you wish to use a third-party signing tool for your iPhone and iPad, get PDFelement today!

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