This tool does lossless JPEG operations such as rotation and can also be used to optimize and remove comments and other useless information (such as EXIF information) from your images.
The key point is that this is a lossless transformation, information is preserved while the physical representation is changed.
关键的是这是一种无损转化，物理表示在改变时，信息是不变的。
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Lossless audio compression technology is a technique that not only preserves the essence of the sound but also restores the precise bit information in that sound.