How to Edit Aspect Ratio in Premiere Pro?

To edit the aspect ratio in Premiere Pro, you primarily adjust the sequence settings to define the desired frame size, effectively changing the aspect ratio. Here's how:

Steps to Change Aspect Ratio:

Create a New Sequence or Modify an Existing One:
- For a new project, go to File > New > Sequence.
- For an existing sequence, select the sequence in the Project panel, then go to Sequence > Sequence Settings.
Adjust Frame Size:
- In the Sequence Settings window, locate the "Frame Size" section.
- Uncheck "Lock Aspect Ratio" if it's checked to freely modify the width and height.
- Enter the desired width and height values to achieve the target aspect ratio. For example:
  - 9:16 (Vertical video): Set the frame size to 1080 x 1920.
  - 1:1 (Square video): Set the frame size to 1080 x 1080.
Confirm Changes:
- Premiere Pro may update the aspect ratio display (e.g., from 16:9 to 9:16) after you enter the new frame size.
- Click "OK" to save the changes.
Adjust Your Clips (If Necessary):
- After changing the sequence aspect ratio, your existing clips might not fit perfectly.
- You may need to adjust the scale, position, and rotation of your clips within the new frame to achieve the desired look. Right-click on a clip in the timeline and select "Scale to Frame Size" or "Set to Frame Size" to start. Be aware that "Scale to Frame Size" may distort your video.

Example: Changing to Vertical (9:16)

Let's say you want to create a vertical video for platforms like TikTok or Instagram Stories.

Create a new sequence (or open an existing one).
Go to Sequence > Sequence Settings.
Uncheck "Lock Aspect Ratio".
Set the "Frame Size" to 1080 (horizontal) by 1920 (vertical).
Click "OK".
Adjust your video clips within the timeline to fit the new vertical frame.

By following these steps, you can effectively edit and change the aspect ratio of your video projects in Adobe Premiere Pro. Remember to adjust your media accordingly after changing the sequence settings.