logo
search
Office Compatibility Issues

How to Fix PowerPoint Changing Custom Fonts to Calibri on Windows

Ayan MasoodAyan Masood Oct 15, 2026 869 views

Question details

A custom brand font displays inconsistently on Mac and automatically changes to Calibri when the PowerPoint template is opened by Windows users, often displaying the font name without spaces.

How to Fix PowerPoint Changing Brand Fonts to Calibri on Windows
Product
Microsoft PowerPoint
Device & OS
Mac and Windows
Scenario
Sharing a PowerPoint presentation or template containing custom brand fonts from a Mac user to a Windows user.
Observed behavior
The Windows version of PowerPoint silently substitutes the custom font with Calibri, even though the custom font name appears in the dropdown list.
Before you start

Ensure you have the original TrueType (.ttf) or OpenType (.otf) font files available, and ask the Windows user to close all Microsoft Office applications before making any changes.

Solution 1Recommended

Verify and Install Matching Font Versions on Windows

Ensure the exact same font version is installed on both operating systems to prevent PowerPoint from silently substituting it with Calibri.

PowerPoint often displays the expected font name in the dropdown menu even if it is not actually installed on the system, while silently substituting it with a default font like Calibri.

Font name discrepancies (such as missing spaces in the font menu) usually indicate that different font versions are installed on Mac and Windows.

1
Transfer the font files

Copy the exact font files used to design the presentation on the Mac and transfer them to the Windows computer.

2
Open Windows Font settings

On the Windows PC, open the Control Panel, navigate to 'Appearance and Personalization', and click on 'Fonts'.

3
Install the fonts

Drag and drop the transferred font files into the Fonts folder to install them.

4
Verify in PowerPoint

Open a blank PowerPoint presentation on the Windows machine and check if the custom font now appears correctly and renders as expected.

Verify and Install Matching Font Versions on Windows
Tip: Embedding fonts in the PowerPoint file before sharing (File > Options > Save > Embed fonts in the file) can also help mitigate missing font issues on the receiving end.
Free Microsoft Office alternative

Try WPS Office for Better Cross-Platform Compatibility

If you frequently experience font substitution and formatting issues when sharing files between Mac and Windows, WPS Office offers a highly compatible, cross-platform presentation tool. It ensures your templates and fonts look exactly the way you designed them, regardless of the operating system.

Highly compatible with Microsoft PowerPoint (.pptx) formats.Consistent font rendering and layout preservation across Windows, Mac, and Linux.Lightweight architecture that runs smoothly even on older hardware.Free to use with a familiar, easy-to-navigate interface.
microsoft office alternative - wps office

Frequently Asked Questions

Why does PowerPoint show my custom font name in the menu but display Calibri?

PowerPoint will often display the name of the font used to create the document in the dropdown menu, even if it is not installed locally on the current computer. When the required font is missing from the system, PowerPoint silently substitutes it with a default system font, typically Calibri.

Can I embed custom fonts in my PowerPoint presentation to avoid this?

Yes, you can embed fonts on Windows by going to File > Options > Save, and checking 'Embed fonts in the file'. However, be aware that some font licenses restrict embedding, which might cause errors or prevent the file from being edited.

Why does my font name appear without spaces on Windows?

This usually happens when the Mac and Windows users have different versions, foundries, or builds of the same font family installed. Removing the existing fonts and installing the exact same font files (.ttf or .otf) on both machines resolves this naming discrepancy.