Once upon a time, there was a paid software called PP Duck, which could also realize the function of image compression, but the disadvantage was that it was expensive. In version 2.0, an activation code can be activated by three devices, while in version 3.0, an activation code can only activate one device. In version 3.0, PP Duck added the function of compressing into WebP format, lured users to exchange 2.0 code for 3.0 code, and gave certain upgrade concessions. However, once the 2.0 codes are exchanged, they will be activated.
Figure pressing function is only much more than PP duck, and it is free!
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The working principle of image compression is very simple. GIF, PNG, JPG, SVG images are compressed by various open source algorithms, and the image size is reduced as much as possible while maintaining the visibility of human eyes.
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