Formatting Issues

Fix Inconsistent Font Sizes in Word Index Entries

Phi Hung Vo Sep 27, 2026 869 views

Question details

The user needs to fix inconsistent font sizes and unexpected formatting appearing in a compiled document index.

How to Fix Random Font Sizes in Word Index Entries

Product: Word
Device & OS: not provided
Scenario: Compiling an index from multiple imported documents or chapters where the final index formatting appears broken.
Observed behavior: Index entries display random font sizes, bold text, or mixed formatting instead of a uniform appearance.

Before you start

Before modifying your index, ensure that you have updated the index field completely by right-clicking it and selecting 'Update Field' to check if the formatting inconsistency persists naturally.

Solution 1Recommended

Modify Built-in Index Styles

Standardize your index formatting globally by modifying the default Index 1 through Index 9 styles, rather than formatting text directly.

Word relies on specific built-in styles to format the index. Index 1 applies to main entries, while Index 2 applies to sub-entries. Modifying these underlying styles ensures uniformity across all compiled chapters.

Open Styles Pane

Navigate to the Home tab and click the small launcher arrow in the bottom-right corner of the Styles group (or press Alt+Ctrl+Shift+S) to open the Styles pane.

Locate Index Styles

Click 'Manage Styles' or 'Options' at the bottom of the pane, select 'All styles' to make them visible, and scroll down to find 'Index 1'.

Modify the Style

Right-click 'Index 1' and choose 'Modify'. In the dialog box, set your preferred font (e.g., Times New Roman) and size (e.g., 12 pt), then click OK.

Update the Index

Right-click anywhere inside your generated index and select 'Update Field'. The index will refresh and apply the newly standardized formatting.

Index Style Levels: Repeat the modification step for Index 2, Index 3, etc., if your index uses multiple nested levels.

Solution 2

Clear Direct Formatting on Source Text

If the issue is isolated to a single imported chapter, direct formatting in the source text might be overriding the global index styles.

Manage Document Formatting Effortlessly

Create and Format Indexes Seamlessly with WPS Writer

WPS Writer provides robust, easy-to-use style management tools to ensure your document indexes, tables of contents, and imported chapters maintain perfectly consistent formatting without the hassle.

1. Open Document: Launch WPS Writer and open your assembled document containing the index.
2. Access Styles: Go to the Home tab, open the Styles and Formatting pane, and locate the Index styles to customize your font parameters globally.
3. Manage References: Navigate to the References tab to easily mark new entries or manage existing index codes.
4. Update Index: Right-click the generated index area and click 'Update Field' to uniformly apply all styling changes instantly.

Highly compatible with Microsoft Word documents and stylesIntuitive Styles Pane for quick and global formatting adjustmentsAdvanced document referencing and index generation toolsFree and lightweight alternative for complex document assembly

microsoft office alternative - wps office

Frequently Asked Questions

Why do some index entries appear bold when others are regular text?

This happens when the source text or the XE (Index Entry) field code itself has direct bold formatting applied. The index compiler carries this direct formatting into the final index, which overrides the default Index style.

What is the difference between Index 1 and Index 2 styles?

Index styles correspond to the hierarchical levels of your index. Index 1 controls the formatting of main parent entries, while Index 2 controls the formatting of sub-entries indented beneath them.

Will updating the index manually erase my formatting changes?

Yes, if you manually highlight and change the font size directly in the compiled index area, updating the index later will completely erase those changes. You must modify the underlying Index styles (Index 1 through 9) to make formatting changes permanent.

How do I view the hidden index entry codes in my document?

Go to the Home tab and click the Show/Hide ¶ (Pilcrow) button, or press Ctrl+Shift+8 on your keyboard. This reveals the hidden { XE "Entry" } field codes embedded directly within your text.

Document & File Issues