This guide provides step-by-step instructions on adding text content to PDF documents on Windows, Mac, and iPhone/iPad devices. Mac users can utilize the built-in Preview app to annotate and add signatures to PDFs. For Windows or Android users, the free Adobe Acrobat DC program is required to insert content and signatures. iPhone/iPad users can access the Markup tool, which functions similarly to the Mac program, without needing additional installations.
Steps
Using Adobe Reader DC on Windows or Mac

Launch Adobe Reader DC on your Windows or Mac computer. If the free application is already installed, you can find it in the Start menu on Windows or the Applications folder on macOS. If Adobe Reader is not installed, visit get.adobe.com/reader to download the free program, compatible with Windows, Mac, and Android operating systems.

Click on the Tools tab. This option is located at the top of the window.

Select Fill & Sign. This option is represented by a pencil icon located in the top-left corner of the application.

Choose your PDF file. To do this, click the blue Select a File button in the center, pick your PDF, and then click Open.

Click on Fill and Sign. This is the blue button in the left panel. Your PDF file will now open, allowing you to input information.

Click on Ab. This is the blue icon in the toolbar above the PDF document. The text tool will immediately appear on the screen.

Click on the location where you want to add content to the document. A text input field will appear immediately.

Adjust the font size. Click the small A to decrease the font size and the large A to increase it.

Click on Type text here. You can now start entering your content.

Enter the content you wish to add to the PDF document.

Click outside the text input field to close it. Once closed, you can still add content to other locations if needed.
- To move content, double-click on it, position the cursor on the edge of the text field, then click and drag it to the desired location.
- To add symbols like checkmarks or circles, click on the desired icon in the toolbar.

Add a signature if you need to sign the PDF document (optional). Follow these steps:
- Click the Sign button in the toolbar.
- Select Add signature or Add initials.
- You can type your signature or initials to use a standard handwritten font, or click Draw to sign using your mouse or trackpad.
- Once satisfied with your signature, click ""Apply"" to add it to the document.
- You can move the signature by clicking and dragging it to your desired location.

Click on the File menu and choose Save. This will save all the added content to the PDF document.
Using Preview on Mac

Open the PDF document in the Preview app. You can do this by double-clicking the PDF icon. Alternatively, double-click the blue overlapping photo icon, select File > Open, choose the PDF, and click Open.

Click on a blank field to enter content into a fillable PDF document. If the open PDF is a fillable form, you don’t need a special editing tool; simply click on the input field (usually a line or box) and start typing. If you can’t enter information into the PDF, refer to the remaining instructions.

Click the pencil icon in the toolbar. This option is located at the top of the window. The Markup tool will immediately appear on the screen.
- You can also open this toolbar by clicking the View menu and selecting Show Markup Toolbar.

Click the T button on the Markup toolbar. This will switch you to text input mode.

Click where you want to add an input field. This action adds the word "Text" to an editable input field.
- You can drag the input field to a different location if needed.

Click on A in the Markup toolbar to customize the font. This option allows you to change the font, color, and style - you can use this toolbar to customize the text as desired.
- Click the font dropdown to select a font.
- Click the colored rectangle to change the text color.
- Click the font size to adjust the size.
- Click B for bold, I for italic, or U for underline.
- Use the buttons below the dialog box to align the text.

Double-click the word Text to start typing your content.

Enter the content you want to add to the PDF document.

Add a signature (optional). If you need to sign the PDF document, use Preview to add your signature. Here’s how:
- Click the signature icon in the toolbar - it looks like a handwritten signature.
- Select Create Signature.
- Choose to create a signature using your trackpad, webcam, or iPhone.
- Use your trackpad or iPhone to sign over the displayed signature area, or sign on a white piece of paper and scan it using your webcam.
- Click Done to save the signature.
- Select the signature and drag it to your desired location.

Click on the File menu and choose Save. This saves all changes made to the PDF file.
Using Markup on iPhone/iPad

Tap on the PDF file you want to open. This could be a file attached to an email or saved on your phone, tablet, or cloud storage service.

Tap on the pencil icon located at the top right corner of the screen. The Markup tool will immediately appear at the bottom of the screen.

Tap on the + symbol. This icon is situated at the bottom right corner of the screen. Additional Markup tools will then be displayed in the menu.

Tap on the Text option. A small input field will promptly appear on the PDF file.

Tap on the input field. This action will expand the menu, revealing additional options below.

Tap on the Aa icon to customize the text. You can select the font style, size, and alignment.
- If you wish to change the text color, tap on the colored circles located at the bottom of the screen.

Tap on the input field and select Edit from the menu. You can now enter any text as desired.

Enter your text. Once you've input the text, tap anywhere outside the text box to close it.

Drag the text box to your preferred location. Release your finger once the box is positioned correctly.

Add a signature if you need to sign the PDF file (Optional). If signing is required, follow these steps in Markup:
- Tap the + icon at the bottom right.
- Select Signature.
- Use your finger to sign on the screen.
- Tap Done at the top.
- Drag the signature to the desired location. Resize it by pulling the blue dots on the corners inward or outward.

Tap Done after editing the file. This action saves the edited PDF file.
Utilize Acrobat Reader DC for Android


- To install the app, open the Play Store, search for Adobe Acrobat Reader, tap on the app name in the search results (featuring a red icon with a white stylized A), and then tap Install.

Launch Acrobat Reader DC. If you're still in the Play Store, tap Open to start the app. Otherwise, simply tap the red and white swirled icon on your home screen or app drawer to open it.
- Upon first launch, you'll be prompted to log in or create an account. You can easily sign in using your Google account or any other preferred account.

Tap on the file icon. This is the second icon in the left-hand panel.

Open the PDF file you wish to edit. If the file is on your Android device, simply tap On This Device and locate the file. You can also search for files on Google Drive, Dropbox, or Adobe Document Cloud.
- If the file is in an email, save it to your Android device to open it in Acrobat Reader.
- If the PDF is stored on Google Drive or Dropbox and you haven't linked your account, you'll be prompted to do so when connecting.

Tap on the PDF file to open it. The PDF file will immediately open in Acrobat Reader.

Tap on the pencil icon. You will find this icon inside a blue circle at the bottom right corner. A menu will expand with several options.

Tap on Fill & Sign (Fill & Sign). This is the second option. A toolbar will expand at the top of the screen.

Tap on the Ab icon to open the text tool. This is the first option in the toolbar at the top of the screen.

Tap where you want to enter text. A text input box will appear at that location.

Adjust the font size. Tap on the small A to decrease the font size and the large A to increase it.

Enter your text. Once you’ve typed your content, tap anywhere outside the input box to close it.

Add a signature if the file requires it. Do you need to sign the PDF file? Here’s how to sign using Acrobat Reader DC:
- Tap the pencil icon at the top right corner of the toolbar.
- Tap Create Signature or Create Initials depending on your needs.
- Tap Done.
- Tap the pencil icon again and then select your signature.
- Tap where you want to place the signature. A black menu with font options will appear.
- Tap the pen icon (third option from the left) on the black horizontal menu. Your signature will appear.
- Drag the signature to the desired position and tap anywhere to exit.

Tap the checkmark to save. You’ll find this icon at the top left corner of the screen.

Tap the three-dot menu and select Save as a copy. This option is located at the top right corner of the screen. The save folders will appear.

Select the save location. You can save the file to Android, Google Drive, or a linked cloud storage account. This action saves a copy of the PDF file along with the entered content.
