How to Fix PowerPoint Changing Custom Fonts to Calibri on Windows
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.

- 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.
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.
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.
Copy the exact font files used to design the presentation on the Mac and transfer them to the Windows computer.
On the Windows PC, open the Control Panel, navigate to 'Appearance and Personalization', and click on 'Fonts'.
Drag and drop the transferred font files into the Fonts folder to install them.
Open a blank PowerPoint presentation on the Windows machine and check if the custom font now appears correctly and renders as expected.

Remove Conflicting Font Versions
Conflicting font caches or cloud-synced fonts like Adobe Fonts can cause rendering issues in Microsoft Office.
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.

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.




