Why Has My InDesign Text Suddenly Got Huge Gaps Between Every Line?

If your text has suddenly acquired huge spaces between its lines (technical term: Leading), the chances are you've adjusted text that's supposed to be sitting on a Baseline Grid. 

This grid is used to align text neatly across columns, and when set up and used well will work beautifully. But if the text is changed from how it's been designed to appear, the baseline grid can cause havoc. This is because it assumes that the leading of the text will be the same as its Increment Every value.

To see what this value is, choose InDesign> Preferences> Grids  (Edit> Preferences> Grids on PC) and look at the Increment Every value. The leading of your text should be no greater than this value, because if it is, it will snap to the baseline grid, but to only every other line.

So a quick way to fix the problem is to select all of your text and adjust its Leading value so that it's the same as the grid's Increment Every value. Better though, in the long run, is to learn about Paragraph Styles and how not to override them.

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