How to Create Curves With Adobe Illustrator

Written by quinten plummer
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In graphics software, curved lines can serve a variety of purposes. You can use them to highlight the borders of a shape, like a caption box or comic bubble. You can also combine them with other lines to form complex shapes. And if you use Adobe's Illustrator application to handle your graphics projects, you can take advantage of its "Arc" tool and draw curved lines to your exact specifications.

Skill level:
Moderately Easy


  1. 1

    Launch Adobe Illustrator. Click on the "Open" option at Illustrator's welcome screen to load an existing project, or click on the "Print Document" option to start a new project.

  2. 2

    Locate the "Line Segment" tool in Illustrator's floating toolbox -- the tool is marked by a slanted line. Click on the "Line Segment" tool's arrow, and then select the "Arc" tool from the pop-up menu that appears.

  3. 3

    Draw your curve across Illustrator's canvas. Click on the point where you'd like the curve to begin. Hold down your mouse's left button, while dragging the curve out to its end point -- then release the left mouse button. The "Arc Segment Tools Options" menu will appear.

  4. 4

    Drag the "Concave/Convex" slider to its "Convex" side to draw your curve's arc outward. Drag it towards the "Concave" side to draw the curve's arc inward. Click on the "Arc Segment Tools Options" menu's "OK" option to complete your curve.

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