Do You Know How to Change Aspect Ratio in iMovie

Q:"How to change aspect ratio in iMovie on Mac?" - from Apple Community

The ratio of width and height is known as the aspect ratio of a video. Currently, the frequently used aspect ratios include 1:1, 4:3, 16:9, 16:10, 2:1, 2.35:1 and 2.39:1, Vertical video. By virtue of different requirements of different platforms or devices in aspect ratio, there are many times when you need to change aspect ratio of your video to fit the established specifications. On Mac, iMovie is a decent option for the adjustment of aspect ratio. If you have not mastered the operations, check the content below and you quickly get how to change video aspect ratio on iMovie.

Part 1. How Can iMovie Change Aspect Ratio on Mac

The task of changing the apsect ratio in iMovie is not a challenge, just being finished within a few easy steps. Before you begin, please focus on that the following guide is not suitable for iMovie 10 and newer versions, since iMovie 10 or later has fixed its aspect ratio at 16:9 and the direct "Aspect Ratio" option is removed from these versions. Faced with this case, try cropping video in iMovie to change the aspect ratio of your video. If it fails to meet your need, use the alternative solution recommended in part 2.

  • Step 1Open iMovie and add video

    First of all, run iMovie on Mac computer. For your first time, you are required to create a new project by clicking a "+" icon and then to "Movie" > "Import Media" to upload your video project. When the video is loaded up, please drag it to the timeline.

    import video to imovie
  • Step 2iMovie change aspect ratio

    Afterward, head to "File" at the top of the main screen and select "Project Properties..." from the drop-down menu. In the properties window, you are presented with detailed info about your imported video including the current aspect ratio. To change it, opt for the required aspect ratio from the drop-down menu of the "Aspect Ratio" option. Please mind that iMovie just offers 16:9 and 4:3 aspect ratios for videos.

    imovie change aspect ratio
  • Step 3iMovie export video

    Lastly, just output and save the resulting video to local by "File" > "Share" > "File...". If necessary, you are able to directly the video to social media platform like YouTube, Facebook, Vimeo, etc.

    imovie export the video

Part 2. How to Change Aspect Ratio in iMovie Alternative

The optimal iMovie alternative - Joyoshare Video Cutter aimed at producing more options to change aspect ratio of a video is recommended here. This tool is named media cutter but actually developed as a piece of editing software for both Windows and Mac operating systems.

With a series of stunning editing features, it has the power to change video aspect ratio to 16:9, 4:3, Full Screen, Pan Screen, etc. with great flexibility, cut and split large video in lossless quality, crop/flip/rotate video, apply showy visual effects or sound effects, add logo, text, subtitles, background music, control volume, adjust brightness, and more.

Remarkable Features of Joyoshare Video Cutter

User-friendly interface and simplicity of operator

Change aspect ratio of videos without any hassle

Encoding mode to edit video and customize output parameters

High-speed mode to precisely cut and losslessly export video at 60X speed

Compatible with many video formats like MP4, MOV, WMV, AVI, MPEG, FLV, etc

  • Step 1Download and install Joyoshare Video Cutter

    Quickly download and install Joyoshare Video Cutter with the click of the above download button. Then, open it and choose "Open" from the main interface to import your video. Or, you are allowed to drag and drop the video to the window. Note that you can but add a file at a time as the program only supports single file processing.

    import video to the program
  • Step 2Set output format under encoding mode

    Next, click on the "Format" button to bring the format window out. What you are going to do is enabling the encoding mode and specifying any desired output format. In the encoding mode, you have the permission to customize output parameters of codec, bit rate, frame rate, resolution, channel, etc.

    Notice: Advanced editing functions of Joyoshare Media Cutter only works under encoding mode. Therefore, to change the video aspect ratio, you must activate its encoding mode rather than the high-speed mode that is conducted to basically cut and split audio and video in a lossless way.

    customize output format
  • Step 3 Change aspect ratio in iMovie alternative

    After that, touch "OK" to quit the format windows and locate "Edit" in the first interface to get into the edit panel. As to edit video aspect ratio, go for "Adjust" tab and then to "Aspect Ratio". From its drop-down list box, there are several kinds of aspec ratio options for video, namely, Original Display, Original Resolution, 16:9, 4:3, Full Screen, and Pan Screen. Check and select the desired aspect ratio for your video. You can real time preview the result in the right window.

    change video aspect ratio

    Alternatively, you crop the video to freely change the aspect ratio. Not only can be input the specific width and height values in the "Crop Area Size" section to customize the aspect ratio but also simply zoom in and zoom out the cropping white window to modify your video aspect ratio.

    crop video to change aspect ratio
  • Step 4 Export the final video

    The only following you will be doing is to hit on the "Start" button situated in the main window to start exporting the video. Once the process is completed, access the local system to find a "converted" folder storing the new video.


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