Change aspect ratio of the timeline

Last updated on Oct 28, 2026

Learn how to change and set a preferred aspect ratio for edited videos in Adobe Firefly.

   Timeline is a beta feature in Adobe Firefly, now available for testing and feedback.

Try it in the app
Create a timeline in your project in a few simple steps.

Manually select a predefined aspect ratio or use the Automatic option to set the aspect ratio of your video in Timeline.

Select the menu   icon at the upper-left corner of the page, then select Timeline > Properties.

Use the Aspect ratio dropdown menu to select one of the presets. 

The Timeline properties panel is open, and the Aspect Ratio dropdown menu is expanded, displaying multiple aspect ratio options to choose from.
Choose from a variety of presets to adjust the timeline's aspect ratio.

Alternatively, you can also select the Change aspect ratio icon from the timeline panel.

The Timeline panel displays the expanded Aspect Ratio dropdown menu, with a highlight over the Change aspect ratio icon.
Quickly switch to a different aspect ratio without opening the timeline properties.