When file-sharing size limits get in the way
Anyone who's tried to send a video by email or a messaging app has probably hit a size limit at some point. Lowering the quality a bit or trimming out unnecessary sections can shrink the file dramatically without much visible difference.
Choosing the right resolution matters more than the compression tool
Before reaching for any compression tool, think about where the video will actually be watched. There's rarely a reason to keep 4K footage at full resolution if it will only ever be viewed on a phone screen β dropping to 1080p or even 720p first often shrinks the file more effectively than compression alone.
Frequently Asked Questions
Does compressing a video hurt the quality a lot?
It depends on the compression level, but a moderate amount of compression often cuts file size by more than half without an obviously noticeable quality drop.
How should I compress a 4K video?
Lowering the resolution to 1080p or 720p is usually the most effective step. Unless you specifically need 4K for later editing or a large display, there's rarely a reason to keep a higher resolution than the screen it'll be watched on.