By Megon VenterThu. 09 Nov. 20233min Read

How to Change Font Size in Adobe Acrobat

Use our helpful guide to discover how to change font size in Adobe Acrobat, plus use our alternative PDF reader to alter text.
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In this blog post, we'll guide you through the process of changing font size in Adobe Acrobat, from the basic steps to more advanced options.

So, let's explore Adobe Acrobat and discover how to make text pop, improve readability, and customize PDFs.

Megon Venter
B2B SaaS Content Writer
Megon is a B2B SaaS Content Writer with 7 years of experience in content strategy and execution. Her expertise lies in the creation of document management tutorials and product comparisons.

How to Change Font Size in Adobe Acrobat

Changing font size in Adobe Acrobat using the PDF text editing feature allows you to adjust text size for better readability or customization. Here's a step-by-step guide on how to change font size in Adobe Acrobat:


Step 1: Open your PDF Document

Launch Adobe Acrobat and open the PDF file you want to edit by clicking on "File" and then selecting "Open."

Adobe Acrobat home menu showing the open file process
Image Source: Adobe Acrobat

Step 2: Select the Text Tool

Under the "All tools" tab, click on the "Edit a PDF" tool. This will enable content editing mode to change the current font size.

Adobe Acrobat
Image Source: Adobe Acrobat

Step 3: Highlight the Text

Click and drag your mouse to select the text you want to change the PDF font size for. This will create a text selection box around the chosen text.

Image Source: Adobe Acrobat

Step 4:
Adjust Font Size 

In the "Text Box Properties" or "Edit Text" dialog that appears, navigate to the "Text" tab. Here in edit mode, you can modify various text attributes, including font size. Locate the "Font Size" field and change the value to your desired font size.

Image Source: Adobe Acrobat

Step 5
: Save Your PDF

Don't forget to save your changes or download your PDF. Click "Download File" to preserve the modified PDF document with the adjusted font size.

Image Source: Adobe Acrobat 

For a detailed tutorial on protecting sensitive information, you can also check our resume resource on How to Redact in Adobe Acrobat.

Best Practice for Changing Font Size

When it comes to changing font size in Adobe Acrobat, following best practices is essential to ensure consistency and readability in your PDF documents. Here are some tips and techniques to help you adjust font size effectively.


1. Select the desired text: Use the Edit Text feature in Adobe Acrobat to select the text you want to modify. This can be done by clicking on the Edit menu and selecting the Edit Text option.

2. Adjust the font size: Once you have selected the text, you can change the font size by locating the font size drop-down list in the nearby font attributes. Click on the drop-down menu and select the desired font size from the options available.

3. Maintain consistency: When changing font size, it's important to maintain consistency throughout the document. Ensure that headings, subheadings, and body text have consistent font sizes to enhance readability and professional appearance.

4. Consider readability: Font size plays a crucial role in readability. While adjusting the font size, always keep the readability factor in mind. Select a font size that is legible and easy to read for your audience.

By following these best practices, you can effectively change font sizes in Adobe Acrobat, resulting in well-designed, readable PDF documents.

You can also check our recommendations for resources on how to change font in Foxit PDF Editor.

"PDF Reader Pro's blend of advanced features with user-centric simplicity makes it the go-to choice for educators and students alike."
Naaziyah Ismail
B2B SaaS Content Writer
Source: LinkedIn

How to Change Font Size in PDF Reader Pro

Did you know that you can alter font size using the edit tool in PDF Reader Pro too?

For Windows

Step 1: Open Your PDF File

Click "Open File" or click and drag your document into the product interface.

Image Source: PDF Reader Pro


Step 2: Use the Magnifying Tool

Click "Tools", select the magnifying tool, then click and hold over text to view larger text.


Step 3: Click "Edit PDF"

Change the font size by clicking the right-side format panel.

Image Source: PDF Reader Pro

For Mac Devices

Step 1: Open Your PDF File

Click "Open File" or drag and drop.

Image Source: PDF Reader Pro


Step 2: Click "Tools"

Click on the magnifying glass, then click and hold over text to view larger font.


Step 3: Click "Edit PDF"

Click on "Panel" on the top-right. Then click on the selected paragraph and change the font size.

Image Source: PDF Reader Pro

I prefer PDF Reader Pro over Adobe Acrobat primarily because it is more cost-efficient and provides an advanced suite of features at a more accessible price point.

One standout tool in PDF Reader Pro that enhances my daily tasks as a content writer is its advanced OCR (Optical Character Recognition) feature. While this feature is also present in Adobe, I find it smoother and more intuitive in PDF Reader Pro for converting scanned documents into editable text.

This functionality helps me with my research and content creation, making PDF Reader Pro my preferred choice for managing my writing projects.

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