After Effects Tip: Scale Composition Script

In this post, we will talk about the Scale Composition Script in After Effects. So without any further ado, let’s dive right in!

Alright, so here we are in After Effects and let’s say I want to scale the size of my composition. I’m going to hit CTRL+K on a PC or CMD+K on a Mac to bring up the composition settings.

Composition Settings in After Effect

What if I want to go from 1920 to 4k like this?

Going from 1920 to 4k in After Effect Composition Settings

I’m going hit okay. Now you can see that the composition size has increased but everything else hasn’t.

Swtiching to 4k composition settings after effects

That can be a bit problematic. What if let’s say you had a lot of animations and different effects. It can be annoying trying to adjust to that size. So what’s the easiest way to do this instead of scaling everything one by one and all that stuff? Let me show you.

I’m going to undo everything with the keyboard shortcut CTRL+Z on a PC or CMD+Z on a Mac.

Undo keyboard shortcut in After Effects

Next, instead of doing what I did before, I’m going to go to File and then Scripts and then I’ll click on this Scale Composition Script.jsx.

Scale composition in After Effects

By the way, Scale Composition.jsx is built-in in After Effects so everyone should have it.

Next, you will see a pop-up window.

Pop Up windong in Scale Composition in After Effects

You can either scale by a factor, width or height.

Scale by a factor or by width or by height with scale composition in After Effects

So right now I’m going to do width. I’m going to go from 1920 to 4k.

New Comp Width Scale Composition in After Effects

When hits scale, you will see that it has scaled to the size of my composition. Now let’s hit CTRL+K on a PC or CMD+K on a Mac to see the composition settings.

Composition Settings in After Effects

As you can see, we are at 4k and everything else has adjusted to that size.

I hope you found this quick tip useful. Make sure to subscribe to our email list for latest After Effects tips.

About the author:

Sergei Prokhnevskiy

Sergei Prokhnevskiy is a Charlotte, NC based motion graphics designer, an online tutor, an entrepreneur, and Adobe MAX Master Speaker. Sergei is known for his quick and practical After Effects tips and tricks on YouTube, where he generated well over 6 million views on his tutorials. He has authored an online video course on After Effects Expressions and developed scripts for After Effects. He is also a former senior motion graphics designer at Fox Sports where he worked on graphics for NFL, Super Bowl, MLB, World Series, College Football, NASCAR, Women’s World Cup, and NASCAR Race Hub. He is very passionate about learning and teaching others.


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