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Home / Adobe InDesign / Adobe InDesign: What’s the Difference Between the Single-Line Composer and the Paragraph Composer?

Adobe InDesign: What’s the Difference Between the Single-Line Composer and the Paragraph Composer?

by Barb Binder

Most layout programs and word processors set the line breaks in a paragraph by evaluating a single line of type at a time. As you edit a paragraph, you will notice the text reflowing on the line you are working on, and you will likely notice the text reflowing through the lines below as well. Think of this the Adobe Single-Line Composer.

In Adobe InDesign, the lines of type are set, by default, in the best interest of the entire paragraph. As you type or edit a paragraph, InDesign adjusts the line breaks a paragraph at a time, which explains why you may notice text reflowing above the line you are editing. It’s unnerving to see until you understand that you are watching the Adobe Paragraph Composer in action. By using the Adobe Paragraph Composer, you are just about guaranteed to have better word spacing, hyphenation and line breaks than if you turned it off. Take a look at the two paragraphs shown below. Both of the body paragraphs are set to the same typeface, size, style and hyphenation settings. The only difference between them is the composer used to set the line breaks. The one on the left is set with the default Paragraph Composer on, the one on the right is set to the Single-Line Composer. Which one do you think looks better?

Adobe InDesign: Paragraph Composer on the left, and Single-Line Composer on the Right.

I’m going to chose the one on the left. It has better word spacing and fewer hyphenation points.

If for some reason you want to turn the Paragraph Composer off, you can do so in the Control panel menu with the Type tool active:

Adobe InDesign: Switch composers in the Control panel menu.

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5 thoughts on “Adobe InDesign: What’s the Difference Between the Single-Line Composer and the Paragraph Composer?

    1. Hi Don: you can not turn off the composers in any version of InDesign—you can only pick the one you want to use.

      ~Barb