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Office Compatibility Issues

Why PowerPoint Replace Fonts Shows Different Font Options

Maira MehtabMaira Mehtab Sep 28, 2026 869 views

Question details

The user wants to understand why PowerPoint's Replace Fonts feature offers different replacement choices for specific fonts like Athiti Light and Arial, and how to safely execute font replacements.

Product
PowerPoint
Device & OS
not provided
Scenario
Replacing fonts globally in a presentation containing specialized fonts with specific language support.
Observed behavior
The Replace Fonts dialog behaves differently depending on the font's language support, potentially causing display issues if a specialized font (like Athiti) is replaced with a standard one (like Arial).
Before you start

Before making global font replacements or modifying presentation files, save a copy of your presentation to ensure you can easily revert if a selected replacement font breaks the display of specialized characters.

Solution 1Recommended

Safely Replace Fonts Based on Language Support

Evaluate your text language to ensure replacement fonts support the necessary characters before executing a global replacement.

Fonts like Athiti support specialized characters (such as Thai), whereas standard fonts like Arial may not. Replacing a specialized font with an incompatible one can lead to broken text or missing character symbols.

1
Identify Text Language

Check your presentation to see if it uses specialized scripts. For example, verify if the text using Athiti is in Thai or a Western language.

2
Choose Compatible Replacements

If the text is strictly Western (like English), replacing Athiti with Arial is safe. If it contains Thai text, you must select another font that explicitly supports Thai characters.

3
Execute Replacement

Navigate to the 'Home' tab, locate the Editing group, click the arrow next to 'Replace', and select 'Replace Fonts'. Choose the original font and your compatible replacement, then click 'Replace'.

Efficient Font Management in WPS Presentation

Easily Manage and Replace Presentation Fonts with WPS Office

WPS Presentation provides a highly compatible and intuitive Replace Font feature, allowing you to seamlessly swap fonts across your entire document while maintaining format integrity for various languages.

  1. 1. Open Presentation: Launch WPS Presentation and open your .pptx file.
  2. 2. Access Replace Font: Navigate to the 'Home' tab on the top ribbon, click the 'Replace' drop-down arrow, and select 'Replace Font'.
  3. 3. Apply New Font: Choose the font you wish to replace, select a compatible new font from the list, and click 'Replace' to update the entire document.
Highly compatible with Microsoft PowerPoint (.pptx) formats and structures.Reliable Replace Font tool that works globally across all slides.Excellent support for diverse language scripts and specialized fonts.Free and lightweight office suite for Windows, Mac, Linux, and mobile.
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Frequently Asked Questions

Why does replacing Athiti with Arial cause display problems?

Athiti supports Thai characters, while Arial does not. If you replace Athiti with Arial on text containing Thai characters, those characters will not render correctly, often appearing as blank boxes or unreadable symbols.

Is it safe to replace fonts if my presentation only contains English text?

Yes. If your presentation uses a specialized font like Athiti but only contains Western-language text (such as English), replacing it with standard fonts like Arial is generally safe and will not cause missing character issues.

Can I report font replacement limitations to Microsoft?

Yes. If you experience limitations with specific fonts like Athiti Light in PowerPoint, you can report the behavior through the PowerPoint Feedback portal or the in-app feedback tool (Help > Feedback) so the product team can investigate it.