Open your project in Premiere on iPhone.
Last updated on
Oct 10, 2025
Learn how to adjust your video to fit any screen or platform in Premiere on iPhone.
You can change the aspect ratio of clips directly from the toolbar. This makes it easy to adapt your video for different outputs, such as widescreen, square, or vertical formats.
Tap the Aspect ratio icon in the toolbar at the top of the screen.
Choose the ratio you want, such as 9:16, 16:9, 4:3, 3:4, 1:1, 4:5, 3:2, 2:3, or 5:4.
The clip updates instantly to match the selected aspect ratio. For clips that don't match the project's aspect ratio, the background is automatically blurred. You can remove or adjust the blur effect using the Background option on the toolbar.
Tip
Pick the aspect ratio that fits where you want to share your video.
1:1 (Square) is best for Instagram posts.
7:9 (Portrait) works well for stories on Instagram, Facebook, and Snapchat.
7:4 or 9:7 (Landscape) is great for YouTube, Twitter, and other platforms that use widescreen formats.
Edit videos on the go with Premiere on iPhone
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