Office Settings & Configuration

How to Disable Autofit for PowerPoint Text Boxes

Maira Mehtab Sep 28, 2026 871 views

Question details

The user wants to prevent PowerPoint from automatically changing the font size of text when adding bullet points or typing extra text into text boxes.

Product: PowerPoint
Device & OS: not provided
Scenario: Editing a presentation that contains multiple slides and text boxes where font size and formatting need to remain consistent.
Observed behavior: PowerPoint automatically resizes and shrinks the font when new text or bullet points are added because the text-box Autofit feature is enabled.

Before you start

Determine whether you want to stop the font resizing for a single new text box, or if you need to apply the change across your entire presentation layout.

Solution 1Recommended

Disable Autofit via Slide Master Layouts

Use this method to apply the 'Do Not Autofit' setting to multiple layouts across your entire presentation simultaneously.

If your presentation already contains many slides and text boxes, modifying the Slide Master is the most efficient way to disable Autofit for all layout placeholders at once.

Open Slide Master

Navigate to the 'View' tab on the top ribbon and select 'Slide Master'.

Select the Text Box Placeholder

Click on the text box placeholder within the slide layout that you want to modify.

Access Text Options

Right-click the selected text box and choose 'Format Shape'. In the pane that opens, select 'Text Options' and click on the 'Text Box' icon.

Select Do Not Autofit

Under the Text Autofit section, choose the 'Do Not Autofit' option.

Apply and Close

Repeat these steps for other layouts in the Slide Master as needed. Once finished, click 'Close Master View' to return to your normal presentation.

AutoCorrect Limitations: AutoCorrect settings affect spelling and grammar. They do not control text-box formatting or stop text from resizing.

Solution 2

Set a New Default Text Box Format

Format a single text box without Autofit and save it as the default configuration for all future text boxes you create.

WPS Presentation Solution

Manage Text Box Autofit Easily with WPS Presentation

WPS Office offers a highly compatible and intuitive alternative for creating presentations. You can easily control text box formatting, including Autofit settings, to ensure your slides look exactly how you want them to without unexpected font size changes.

1. Open Presentation in WPS: Launch WPS Office and open your presentation file.
2. Access Object Formatting: Right-click the target text box or placeholder and select 'Format Object'.
3. Adjust Text Box Properties: Navigate to the Text Properties tab, select the Text Box section, and choose 'Do not Autofit'.
4. Set as Default: To apply this to future text boxes, right-click the adjusted text box and choose 'Set as Default Text Box'.

Fully compatible with Microsoft PowerPoint (.pptx) formatsIntuitive interface for managing Slide Master layoutsGranular control over text box formatting and Autofit settingsFree, lightweight, and fast document editing

Frequently Asked Questions

Why does my text shrink when I add more bullet points in PowerPoint?

This happens because the 'Shrink text on overflow' Autofit setting is enabled by default. PowerPoint tries to fit all your text within the predefined boundaries of the text box by reducing the font size. You can disable this in the Format Shape menu.

Can I disable Autofit for all slides at once?

Yes. The most efficient way to disable Autofit for all slides is to modify the placeholder text boxes in the Slide Master. Go to View > Slide Master, select the placeholders on your layouts, and set their text box options to 'Do not Autofit'.

Does turning off AutoCorrect stop text from resizing?

No, AutoCorrect settings only govern spelling, grammar, and automatic symbol replacement. To prevent text from resizing, you must adjust the Text Autofit settings located in the Format Shape pane.

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