Changing the font in a Google Slides text box is quick, but there are a few tricks that save time: selecting the whole box instead of dragging over text, changing several boxes at once, adding fonts beyond the default list, and updating the font on every slide through the theme. This guide covers all of them, on a computer and in the mobile app.
Quick Answer
Click the border of the text box to select the whole box (or click inside and press Ctrl + A). Then open the font menu in the toolbar (it shows the current font, like Arial) and choose a new font. Use the − and + buttons next to it to change the size.

Change the Font in One Text Box
- Click the edge of the text box so the box (not the cursor) is selected. A blue outline with handles appears.
- Click the font name in the toolbar.
- Choose a font from the list.
- Optional: change the size with the − / + buttons or type a number, and use Bold, Italic, or Text color.
To change only some words, click inside the box and highlight just those words before picking a font.
If the toolbar is too narrow to show the font menu, click the three dots (More) at the right end of the toolbar, or maximize the window.
Change the Font in Several Text Boxes at Once
- Click the first text box’s border.
- Hold Shift and click the borders of the other boxes (or drag a selection rectangle around them on an empty part of the slide).
- Choose a font from the toolbar. All selected boxes update.
To copy the look of one box to another, select the formatted text, click the Paint format brush, then click the other text box.
Change the Font on Every Slide (Theme Fonts)
If you want the whole presentation to use a new font, including new slides, edit the theme:
- Go to Slide > Edit theme (or View > Theme builder).
- Click the top theme slide at the top of the left panel.
- Select the title and body placeholders and change their font.
- Click the X to close the theme builder.
Placeholders on all layouts that follow the theme update automatically. Text boxes you inserted yourself (with Insert > Text box) and text with manual formatting don’t follow the theme; change those directly.
Add More Fonts
- Open the font menu and click More fonts at the top.
- Search or filter by style (Serif, Handwriting, Display, and so on).
- Click fonts to add them to My fonts, then click OK.
Added fonts appear in the font list in all your Google Docs, Sheets, and Slides. Google Slides can’t use fonts installed only on your computer; see our guide to adding fonts to Google Slides for workarounds.
Change the Font on iPhone, iPad, or Android
- Open the presentation in the Google Slides app and tap the slide to edit.
- Tap the text box, then tap again (or double-tap) to select the text.
- Tap the Format button (the A with lines).
- On the Text tab, tap the font name and choose a new one. Adjust the size with the arrows.
Troubleshooting
- Font changes back or doesn’t apply: You may have only placed the cursor without selecting text. Select the box border or press Ctrl + A inside it.
- Text overflows after changing font: Right-click the box, choose Format options > Text fitting, and select Shrink text on overflow, or resize the box.
- Font looks different in PowerPoint: If you download as .pptx, the other computer needs the same font installed, or it substitutes one. Standard fonts like Arial and Georgia are the safest.
Summary
- Click the text box border to select it.
- Pick a font from the toolbar font menu.
- Shift-click to change several boxes at once.
- Use Slide > Edit theme to change fonts on every slide.
- Add fonts with More fonts.

Kermit Matthews is a freelance writer based in Philadelphia, Pennsylvania with more than a decade of experience writing technology guides. He has a Bachelor’s and Master’s degree in Computer Science and has spent much of his professional career in IT management.
He specializes in writing content about iPhones, Android devices, Microsoft Office, and many other popular applications and devices.