How Do I Smooth Lines in AutoCAD?

Are you tired of jagged lines in your AutoCAD drawings? Do you want to achieve smoother lines for a more professional finish?

Look no further! In this tutorial, we will show you how to smooth lines in AutoCAD using various techniques and tools.

Method 1: Adjusting Lineweight

If you are experiencing jagged lines in your AutoCAD drawings, one possible solution is to adjust the lineweight. Lineweight refers to the thickness of the lines displayed on your screen or when printed. By increasing the lineweight, you can achieve smoother and more defined lines.

To adjust the lineweight in AutoCAD, follow these steps:

  • Step 1: Open your drawing in AutoCAD.
  • Step 2: Navigate to the “Format” menu and select “Lineweight.”
  • Step 3: In the Lineweight Settings dialog box, increase the value of the lineweight for the desired line.

If adjusting lineweight doesn’t solve your issue, don’t worry! There are other methods you can try.

Method 2: Using Smooth Line Display

In addition to adjusting lineweights, AutoCAD offers a feature called “Smooth Line Display” that can help improve line quality. This feature removes some of the jaggedness from diagonal and curved lines.

To enable Smooth Line Display in AutoCAD, follow these steps:

  • Step 1: Open your drawing in AutoCAD.
  • Step 2: Go to the “View” tab on the ribbon.
  • Step 3: In the “Visual Styles” panel, click on the “Visual Styles Manager” button.
  • Step 4: In the Visual Styles Manager dialog box, select the visual style that supports Smooth Line Display (e.g., “Conceptual”).
  • Step 5: Click on the “Set Current” button and then click “OK.”

The Smooth Line Display feature should now be enabled, resulting in smoother lines in your AutoCAD drawings.

Method 3: Adjusting Graphics Performance

If you are still experiencing jagged lines in AutoCAD, it may be due to your computer’s graphics performance. By adjusting the graphics settings, you can enhance line quality and overall drawing performance.

To adjust graphics performance in AutoCAD, follow these steps:

  • Step 1: Open your drawing in AutoCAD.
  • Step 2: Go to the “Options” menu by typing “OP” on the command line and pressing Enter.
  • Step 3: In the Options dialog box, select the “System” tab.
  • Step 4: Under the “Performance” section, click on the “Graphics Performance..” button.
  • Step 5: In the Graphics Performance dialog box, adjust the settings according to your computer’s capabilities. You can try enabling hardware acceleration or reducing hardware acceleration depending on your needs.

Note that adjusting graphics performance may require restarting AutoCAD for changes to take effect. After adjusting the settings, check if the lines appear smoother in your drawings.


Smooth lines are essential for creating professional AutoCAD drawings. By adjusting lineweight, enabling Smooth Line Display, and optimizing graphics performance, you can achieve smoother lines and enhance the overall quality of your drawings.

Experiment with these methods to find the best solution for your specific needs. Happy drawing!