How to Adjust Word’s Kerning Settings for Heading Styles Only

Kerning adjusts the spacing between individual characters to improve readability and visual balance. In Word, kerning is typically applied to text at or above a certain font size. By default, Word enables kerning for fonts at 14 points and above, but this setting applies globally to all text unless you customize it. This article explains how to modify kerning settings so that only your heading styles use distinct kerning behavior, leaving body text unchanged.

Understanding Kerning in Word and Its Style-Specific Application

Kerning adjusts the space between specific letter pairs, such as AV or To, to create visually even text. In Word, the kerning setting is a font-level property, not a paragraph-level one. This means it can be set differently for each style, including heading styles.

The default kerning behavior in Word is controlled by the Normal style. When you enable kerning in the Font dialog box for the Normal style, it applies to all text based on that style, including headings that inherit from Normal. To apply kerning only to headings, you must modify each heading style individually and ensure the Normal style has kerning turned off.

Where to Find the Kerning Setting

The kerning option is located in the Font dialog box on the Advanced tab. You can access it by selecting text and pressing Ctrl+D, then clicking the Advanced tab. The setting is labeled Kerning for fonts and includes a point size threshold. Word applies kerning only to text at or above that size.

Why Style-Specific Kerning Matters

Headings are usually larger and more prominent than body text. Applying kerning to headings can improve readability and give a polished look. Body text at smaller sizes often does not benefit from kerning and may even look uneven. By restricting kerning to heading styles, you keep body text clean and avoid performance slowdowns in large documents.

Steps to Set Kerning for Heading Styles Only

Follow these steps to enable kerning on heading styles while keeping body text unchanged. The process uses the Modify Style dialog to ensure the setting is saved with the style, not as direct formatting.

1. Open the Styles pane
   Press Alt+Ctrl+Shift+S or click the small arrow in the bottom-right corner of the Styles group on the Home tab. The Styles pane appears on the right side of the window.
2. Locate the heading style you want to change
   In the Styles pane, find the heading style, for example Heading 1, Heading 2, or Heading 3. Hover over it and click the downward arrow that appears, then select Modify from the menu.
3. Open the Font dialog box
   In the Modify Style dialog, click the Format button in the bottom-left corner, then choose Font. This opens the Font dialog box.
4. Enable kerning on the Advanced tab
   In the Font dialog box, click the Advanced tab. Under Character Spacing, check the box labeled Kerning for fonts. In the points box to the right, enter the minimum font size for kerning. For headings, a common value is 12 or 14 points. Click OK to close the Font dialog.
5. Save the style modification
   Back in the Modify Style dialog, make sure Only in this document or New documents based on this template is selected, depending on your preference. Click OK to apply the change.
6. Repeat for other heading styles
   Repeat steps 2 through 5 for each heading style you want to have kerning. For example, apply the same setting to Heading 2 and Heading 3.

After completing these steps, only the heading styles you modified will have kerning enabled. Body text using the Normal style or other styles will remain unaffected.

Common Mistakes and Limitations When Setting Kerning Per Style

Kerning Applies to All Text After Changing Normal Style

If you enable kerning on the Normal style, it cascades to all styles based on Normal, including headings. To avoid this, never modify the Normal style’s kerning setting. Always modify individual heading styles directly.

Direct Formatting Overrides Style Settings

If you select a heading and manually apply kerning using Ctrl+D without modifying the style, the kerning is direct formatting. Direct formatting can be lost when you update the style or copy text to another document. Always use the Modify Style dialog to make kerning part of the style definition.

Kerning Threshold May Not Match Heading Font Size

If your heading style uses a font size smaller than the kerning threshold you set, kerning will not apply. For example, if Heading 2 is set to 13 points and you set the threshold to 14 points, no kerning occurs. Set the threshold to the exact font size of the heading or lower.

Linked Styles Do Not Support Kerning Directly

Word’s linked styles combine paragraph and character formatting. While you can set kerning in the font settings of a linked style, the kerning applies to the paragraph portion. To apply kerning only to specific words within a heading, use a character style instead.

Kerning Settings: Style Modification vs Direct Formatting

Item	Modify Style Method	Direct Formatting Method
Access path	Home > Styles pane > Modify > Format > Font	Select text > Ctrl+D > Advanced tab
Persistence	Saved with style, survives document copy	Lost when style updates or text is copied
Scope	All text using that style	Only the selected text
Best for	Applying kerning to all headings consistently	One-time adjustment for a specific heading
Risk	None if Normal style is left unchanged	Overrides style setting and may be overwritten

Use the Modify Style method for long-term, consistent kerning across your document or template. Use direct formatting only for temporary or single-instance adjustments.

You can now apply kerning specifically to heading styles in Word without affecting body text. To verify the change, apply a heading style to a line of text and check the spacing between large letter pairs like AV or To. For advanced control, consider creating a custom character style with kerning enabled and applying it to selected heading words. This approach keeps body text clean and headings polished.