Why compress videos to smaller sizes?
Working with video files can quickly show you the limitations of your computer. Large files can put a strain on system resources while editing or viewing large videos, slowing everything down. Video compression can solve this problem. And Adobe Media Encoder provides an easy way to compress video file size with as little visible quality loss as possible or changing the aspect ratio.
Video file size compression: lossless vs. lossy.
To reduce file size, you can use two types of compression — lossless and lossy. What's the difference between the two? Lossless compression is a way to reduce file size without losing quality — this is what happens anytime you create a ZIP file. In this scenario, the original data is preserved, and nothing is thrown out. On the other hand, lossy compression shrinks the file size by throwing out extra, unnecessary data.
You'll want to choose lossless compression if you want to preserve your video in its original quality. However, if a similar copy is "good enough," lossy compression can make your video files even smaller, which in turn can make sharing them even more manageable.
Why a smaller file size is the right video size.
Resize videos for better workflow.
If you are working with high-resolution source files, such as 4K video, reducing the file size of videos also saves time in production. Many video files, like those from a high-end camera, are large and can demand a lot from your machine while you edit, whether you work in Windows or on a Mac. You might create proxy files, which use a lower data rate but maintain the aspect ratio, for a smoother editing experience. Compress video files to a more manageable format like MP4, helping make your workflow more efficient. Then, when you export, Media Encoder will automatically switch back to using your high-resolution sources.
Smaller videos help your viewers.
Most social sites like Facebook and YouTube will make your video smaller for playback across a variety of devices when you upload. But if you plan to host the video yourself or want it smaller to share the file more easily, reducing the size of video files is helpful for your audience. While some large high-resolution files might play well on high-quality PCs, creators of video content also have to remember many people watch videos on smartphones, older PCs, or with slower Wi-Fi or cellular connections. If you’re uploading video content, you want to publish the best video quality possible at a size that’s accessible to the largest possible audience. You can reduce the file’s resolution or data rate to help with this.