Choosing the right font is an important design decision when creating a PowerPoint presentation. The font you select impacts the readability, tone, and overall aesthetic of your slides.

While you can change fonts on individual slides, it’s easier to update the default font for all slides at once. Here are two simple methods to change the font on all slides in your PowerPoint presentation.

Use the “Replace Fonts” Tool

The quickest way to change fonts across an entire PowerPoint presentation is by using the “Replace Fonts” tool. Here’s how:

Open your PowerPoint presentation and select the “Home” tab.
Click the arrow next to “Replace” and choose “Replace Fonts” from the dropdown menu.
In the “Replace Fonts” dialog box, select the font you want to replace from the “Replace” drop-down menu.

Choose the new font you want to use across your presentation from the “With” drop-down menu.
Click “Replace” to change the selected font across all slides.

The “Replace Fonts” tool is very convenient for making a global font change with just a few clicks. However, it won’t update font formats like bold or italic text. For more control, use the Slide Master instead.

Edit the Slide Master Template

The Slide Master in PowerPoint controls the default design of all slides, including font choices. Here’s how to change default fonts using the Slide Master:

Select the “View” tab and click “Slide Master”.
In the left pane, click the slide master thumbnail.

On the “Slide Master” tab, click the “Fonts” dropdown and select your desired font.
Repeat steps 2-3 to change other font types like headings and body text.
Click “Close Master View” to apply font changes.

Modifying the Slide Master updates the look of placeholder text boxes on every slide using that master template. Unlike the “Replace Fonts” tool, it allows you to set specific fonts for titles, subtitles, body text, and more.

Font Recommendations for Presentations

When selecting a font for your presentation, stick to standard, easy-to-read options like the following:

Sans serif fonts – Arial, Calibri, Helvetica, Verdana

Serif fonts – Georgia, Times New Roman
Script/handwriting fonts – Avoid using these for presentations

Sans serif fonts are clean and modern choices ideal for presentations. They also tend to be more legible, especially at smaller sizes.

For contrast, use a serif font like Times New Roman for slide titles and a sans serif like Arial for body text. But limit your selection to just one or two font families for a cohesive look.

Other PowerPoint Font Tips

Keep these additional tips in mind when working with fonts in your PowerPoint presentations:

Use a font size of 24-32 pt for body text and 36-50 pt for titles

Only use one or two complementary fonts
Ensure selected fonts are installed on the presentation computer
Set line spacing to 1.0-1.15 to improve readability

Use bold, italic, or ALL CAPS to emphasize important text
Left align body text and center align slide titles

Following basic typography guidelines will improve the readability of your slides. Carefully chosen fonts that suit your presentation topic also help convey key messages to your audience.

Change Fonts With a Few Clicks

Changing the font on all PowerPoint slides is simple once you know how. Use the “Replace Fonts” tool for a quick global update or edit the Slide Master for more customization.

Stick to one or two standard, easy-to-read fonts and aim for 24 pt body text and 36+ pt titles. With good typographic principles, you can transform lackluster slides into a beautiful, professional presentation.