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Économie de diffusée: Guide étape par étape pour modifier des vidéos verticales dans iMovie sur Mac

Cynthia Jul 13, 2026

Ever found yourself with stunning vertical footage but struggled to edit it in iMovie on your Mac? With the rise of social media platforms optimized for vertical content, it's crucial to know how to edit vertical video in iMovie. Let's dive into a step-by-step guide to help you create perfect vertical videos every time.

How To Edit Vertical Video on iMovie Mac
How To Edit Vertical Video on iMovie Mac

Before we start, ensure your footage is shot in a 9:16 aspect ratio. While iMovie does let you rotate and crop, starting with the right aspect ratio save you time and hassle.

How to Make iMovie Video Vertical (Portrait)
How to Make iMovie Video Vertical (Portrait)

Importing and Preparing Your Vertical Video

First, launch iMovie on your Mac and create a new project. Click on 'Import Media' to upload your vertical video. It's essential to ensure your video is imported as vertical; otherwise, you'll have to rotate it later.

imovie editing hacks
imovie editing hacks

Once imported, drag the clip to the timeline. If it's not already vertical, hover over the clip until you see a double-sided arrow, then click and drag to rotate it to the correct orientation.

Editing Your Vertical Video in iMovie

Vertical Video Conversion Hack | iMovie + QuickTime
Vertical Video Conversion Hack | iMovie + QuickTime

Now that your footage is correctly oriented, let's look at some key editing techniques to enhance your vertical videos.

Applying Video Transitions

Transitions can add a dynamic touch to your vertical videos. Click on the transition you want to use in the top-right corner of the iMovie interface, then drag it to the point where you want it to appear in your timeline. Be mindful of the pace; transitions should complement, not overpower, your content.

How To Edit Vertical Video on iMovie
How To Edit Vertical Video on iMovie

To preview the transition, place the playhead on it and press the Spacebar. You can adjust the duration of the transition by dragging its endpoints on the timeline.

Adding Text and Titles

Text can help tell your story and engage your audience. Click on the 'T' icon, then drag the text box to the point in your timeline where you want it to appear. You can adjust the size, font, and color to fit your video's style.

EASY iMovie Editing Tutorial | How to Edit YouTube Videos on a Macbook Pro
EASY iMovie Editing Tutorial | How to Edit YouTube Videos on a Macbook Pro

A pro tip is to use text as a visual guide, placing it where you want your viewer's focus to be. For instance, if you're showcasing a product, place text on the product itself to draw attention.

Incorporating Audio

How to Edit Vertical Video – LumaFusion Tutorial
How to Edit Vertical Video – LumaFusion Tutorial
Scrolling effects for video tutorials
Scrolling effects for video tutorials
2026 Updated | How to Crop a Video in iMovie? [Mac, iPhone, iPad]
2026 Updated | How to Crop a Video in iMovie? [Mac, iPhone, iPad]
two people sitting in lawn chairs on the beach with text overlay how to create a photo & video slideshow with imovie for mac
two people sitting in lawn chairs on the beach with text overlay how to create a photo & video slideshow with imovie for mac
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iMovie 2020 – Complete Tutorial for Mac – Meredith Marsh (VidProMom)
How to Stop iMovie From Cropping Video on iPhone
How to Stop iMovie From Cropping Video on iPhone
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10 Best iMovie Alternatives for Mac to Choose the Right Option
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a man sitting at a desk with the text how to do this new editing setup
Видеоредактор
Видеоредактор

Sound effects, background music, and voiceovers can make your vertical videos more captivating. Click on 'Audio' in the top-right corner to access the audio browser, then drag the clip to the timeline. As with video, ensure your audio tracks are properly synchronized with your visuals.

You can also adjust the volume levels of your audio clips by dragging their volume sliders in the inspector panel. Just click once anywhere on the clip to reveal these settings.

Here's a sneak peek of what's coming up next: We'll explore how you can easily export your vertically edited masterpiece and share it with the world.