How do I add borders on the sides of my recordings?

[Macaulyn]

I've seen videos in which people have, like images or even a part of the video itself used as borders on the left and right of the video when what they're recording is 640x480 and they want to make it larger. How do I add those?

 

[Macaulyn]

I found an example of a tutotial done in Adobe Premiere, can this be done on OBS?

How to BLUR the Sides of a VERTICAL VIDEO in Premiere Pro CC

In this video I'm going to show you how to add a blurry border to the sides of vertical video in Premiere Pro CC 2021. In order to blur the sides of a vertic...

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