Compression is to "slim down" the original file as much as possible, and it has already been "thin", and there is not much "oil and water" to be thinner.

If the compressed file is too large, which will affect the transmission or inconvenient storage, you can consider "volume compression", that is, when compressing, make several small compressed files according to your requirements.

For example, if a single compressed package is 4G, you can specify the compressed package size as 1G for volume compression, and it will be automatically compressed into four compressed packages of1g..

The decompression operation of the volume-divided compressed package is the same as that of the single package.