How To Lower Opacity In Adobe Illustrator

Graphic design often requires the ability to adjust the transparency of an object or layer in order to have more flexibility and precision in the end result. This is made possible in popular vector graphics editing software, like Adobe Illustrator, through a simple procedure for decreasing opacity. This brief tutorial will walk you through the process of lowering opacity in Adobe Illustrator.

Understanding Opacity in Adobe Illustrator

Opacity in Adobe Illustrator refers to the degree to which an object or layer is transparent or opaque. A lower opacity setting makes an object more transparent, allowing elements behind it to be more visible. Conversely, a higher opacity setting makes the object more opaque, blocking elements behind it.

Steps to Lower Opacity in Adobe Illustrator

Follow these simple steps to lower the opacity of an object in Adobe Illustrator:

  1. Open your project in Adobe Illustrator.
  2. Select the object or layer whose opacity you want to adjust.
  3. Go to the Opacity box in the Properties panel, typically located on the right side of the screen.
  4. Enter your desired opacity level as a percentage (from 0% to 100%) in the Opacity box or use the slider to adjust the opacity level. Remember, a lower percentage makes the object more transparent.
// Here's an example showing how to change the opacity to 50%
let yourObject = app.activeDocument.pageItems.getByName("Your Object Name");
yourObject.opacity = 50;

In the above code snippet, we first select the object by its name using the getByName method. Then, we set its opacity to 50% using the opacity property.


Mastering the use of opacity in Adobe Illustrator allows you to add depth and dimension to your designs, creating a more engaging visual experience. Practice adjusting the opacity levels of different objects and layers to enhance your graphic design skills. Remember, the key to great design often lies in the details!