The principle of video compression is to reduce the size of video files through algorithms and technologies to save storage space and transmission bandwidth. In order to reduce the video size, professional video compression software can be used, which can not only reduce the video size, but also maintain the clarity of image quality to a certain extent.

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1. Open Hi Format Compression Master on the computer and you can see five compression functions. Click "Video Compression" as needed.

2. After entering the video compression function interface, click or directly drag the prepared video into the software, and set the compression mode on the right. If you want to be simple and quick, you can choose normal compression, definition priority or extreme compression in shortcut settings. If the video file size is required, you can customize the compression parameters according to the bit rate or file size in the advanced settings.

3. After the above settings are completed, click the "Start Compression" button to finish, and wait a moment to complete the video compression operation. In the interface, we can also directly see the video size before and after compression, which is convenient for us to understand.

When you encounter the problem that the file is too large, you can use Hi Format Compression Master to compress the file. The software supports file batch compression, and sets various compression parameters by itself, which can adapt to different needs in various scenarios.