Why is my InDesign text highlighted in blue?
This is an increasingly common problem: InDesign users suddenly find that some (or all!) of their text highlighted in blue. For example, check out this image:

What on earth is going on?! The text is still editable, and the blue disappears when you export a PDF, print, or even just switch into Preview mode.
The answer is that youāve enabled a feature inside the Paragraph Styles or Character Styles panel called Toggle Style Override Highlighter. Itās a button with a [+] icon, in the upper-right corner of the panel (and is also listed in the panel menu):

When that is on, InDesign highlights any text that has local formatting applied to it. Remember that ālocalā formatting is any formatting over and above the paragraph style. For example, if you select some text and change its size in the Control panel, thatās local formatting. If you change the first line indent of a paragraph, thatās local. However, if you apply a character style in the Character Styles panel, that is not local formatting.
In the first image above, the text in blue highlighting has character-level local formatting (such as a different font, size, leading, color, style, and so on). The text near the bottom (the paragraph that has a blue vertical bar to the left, just outside the text frame) has paragraph-level local formatting (such as a different indent, drop cap, or something like that).
TheĀ Toggle Style Override Highlighter feature is awesome because it lets you find local formatting really quickly. But if you donāt know why you’re seeingĀ text highlighted in blue, it can be really confusing!
This article was last modified on July 25, 2019
This article was first published on August 10, 2016
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