When you open a document in Word and text appears in a different font than expected, font substitution is the likely cause. Word replaces missing fonts with available ones when the original font is not installed on your current system. This often happens when sharing documents between different computers or receiving files from others. This article explains why font substitution occurs and provides step-by-step methods to fix and prevent the problem.
Key Takeaways: Fixing Font Substitution in Word
- File > Options > Advanced > Show document content > Use substitution fonts: Turn this setting off to force Word to display the original font, even if it is not installed.
- File > Info > Check for Issues > Inspect Document > Document Inspector > Embedded fonts: Embed fonts in your document so they travel with the file and display correctly on any system.
- Ctrl+D > Font > Font Embedding > Embed fonts in the file: Save the document with embedded fonts to prevent substitution when sharing.
Why Word Substitutes Fonts and How It Affects Display
Word uses font substitution when the font specified in the document is not installed on the computer where the document is opened. This is a built-in fallback mechanism to ensure text is readable, but it can change the intended appearance. Word selects a substitute font based on similarity of font metrics, such as character width and height. However, the visual result often looks different from the original font.
Font substitution is most noticeable with uncommon or proprietary fonts that are not included with Windows or Microsoft 365. Documents created on a Mac or using specialized design software frequently trigger substitution when opened on a PC. Word displays a tooltip when you hover over text that has been substituted, showing the original font name and the replacement font name.
The Font Substitution dialog in Word lists every font that was substituted and the font used in its place. You can access this dialog to see exactly which fonts are affected. Understanding this list is the first step toward resolving the issue permanently.
Steps to Identify and Fix Font Substitution in Word
Follow these methods to stop Word from substituting fonts and restore the correct display.
Method 1: Disable Font Substitution in Word Options
- Open Word Options
Click File > Options in the backstage view. This opens the Word Options dialog box. - Navigate to Advanced settings
In the left pane, select Advanced. Scroll down to the Show document content section. - Turn off font substitution
Uncheck the box labeled Use substitution fonts. Click OK to save the change. - Check the document
Close and reopen the document to see if the original fonts are now displayed. If the font is missing, Word will show a square box or a different glyph instead of substituting a similar font.
Method 2: Embed Fonts in the Document Before Sharing
- Open the document with the correct fonts
Open the document on the computer where the original fonts are installed. - Access Save options
Click File > Options > Save. Scroll to the Preserve fidelity when sharing this document section. - Enable font embedding
Check the box Embed fonts in the file. For most documents, check the sub-option Do not embed common system fonts to keep file size smaller. Click OK. - Save the document
Save the document using File > Save As. The embedded fonts will now travel with the file.
Method 3: Install the Missing Font
- Identify the missing font
In Word, click File > Options > Advanced. Under Show document content, click the Font Substitution button. A list shows each missing font and the substitute font used. - Download or obtain the font file
Search for the missing font name online from a trusted font foundry or the original source. Download the TrueType (.ttf) or OpenType (.otf) file. - Install the font on Windows
Right-click the downloaded font file and select Install. Alternatively, drag the font file into the Fonts folder in Control Panel or Settings > Personalization > Fonts. - Restart Word and reopen the document
Close Word completely and reopen the document. Word will now use the installed font and stop substitution.
If Word Still Shows Wrong Fonts After Applying the Fix
Font Substitution Tooltip Disagrees With Actual Display
Sometimes the tooltip says a font was substituted but the text still looks different even after embedding. This can happen if the embedded font is corrupted or if the document contains text formatted with a font that was not embedded because of licensing restrictions. To fix this, re-embed the fonts using Method 2 and ensure you check the option to embed all fonts, not just common system fonts.
Word Still Substitutes Fonts Even When Embedding Is Enabled
Some fonts have license restrictions that prevent embedding. Word will skip these fonts during save even if embedding is turned on. The only solution is to install the font on every computer that opens the document. Check the font license or use a different font that allows embedding.
Document Displays Correctly on One Computer but Not Another
This confirms that the font is not installed on the second computer and embedding was either not enabled or not successful. Re-embed the fonts as described in Method 2 and verify the embedding by checking File > Info > Check for Issues > Inspect Document. The Document Inspector will show whether fonts are embedded.
| Item | Disable Substitution | Embed Fonts |
|---|---|---|
| Effect on display | Shows original font if installed; shows missing glyph if not | Shows original font regardless of installation |
| File size impact | No change | Increases file size, especially with many fonts |
| Requires font installation | Yes, on each computer | No, fonts travel with file |
| Works with licensed fonts | Yes | Only if license allows embedding |
| Best for | Personal documents on one computer | Documents shared with others |
Now you can identify which fonts are being substituted using the Font Substitution dialog and apply the correct fix. For documents you share frequently, enable font embedding in Word Options before saving. As an advanced tip, create a template with embedded fonts to ensure all new documents inherit the correct font behavior automatically.