Vary font height

Last updated on Sep 11, 2025

Learn how to modify text height for better layout and visual impact.

Select a text frame using the Selection tool.

Select Window > Type > Character.

In the Character panel, select More options > Show Font Height Options.

In the Character panel, open the Set font height reference dropdown and select one of the following height metrics as needed:

  • Em Box: Sets the font size based on the full em square of the font.
  • Cap Height: Sets the font size based on the height of the uppercase letters.
  • x-Height: Sets the font size based on the height of lowercase characters.
  • ICF Box: Sets the font size based on the ICF (Ideographic Character Face) Box, commonly used in CJK fonts.
The Character panel is displayed on the screen highlighting the font height reference options such as Em Box, Cap Height, x-Height, and ICF Box.
Use the Character panel to vary the font height, style, or size.