Sometimes you may need to change the aspect ratio to match social media, such as Facebook or Instagram.
Once your render is complete it is finalised and unfortunately, the format can't be changed. The different aspect ratios are separate, stand-alone templates and therefore one size cannot be converted to the other.
However, you can also crop any finalised animation in an editor. If you do not have an editor or are unsure on which to use, we are more than happy to recommend some for you depending on your needs; just reach out to our support team.