How to Change the Font Size in Adobe Acrobat

Updated on:

May 12, 2026

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Use this interactive demo to learn how to adjust text font size in Adobe Acrobat.

Quick summary

In Adobe Acrobat, you can change the font size of any text by entering Edit mode, selecting the target text, and choosing a new size from the Font Size menu in the left-side panel. This process takes just a few clicks and applies instantly to the selected text section.

Steps

Navigate to the top menu bar and click 'Edit' to enter text editing mode.
Select and highlight the text section you want to edit and change the font size.
Go to the left-side panel and click the 'Font Size' menu.
Select the new font size you wish to apply to the highlighted text.
The font size of the selected text section will be updated according to your input.

📌 Why this matters

Changing font size in Adobe Acrobat is a core PDF editing skill that lets users control text formatting directly within existing documents without converting to another format. Adobe Acrobat's built-in text editing tools allow precise typographic adjustments, making it the go-to solution for professionals who need to modify PDF content quickly and accurately. The ability to resize text on the fly helps teams maintain brand consistency, improve document readability, and reduce turnaround time on PDF revisions.

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