Lossless Compression is when file size is reduced with no loss of quality or data. This seemingly magical method of reducing file sizes can be applied to both image and audio files. While JPEGs and MP3s use lossy compression, newer compression algorithms, such as JPEG 2000 and Apple Lossless compression, can be used to create lossless compressed files.
Lossless compression rewrites the data of the original file in a more efficient way. Because no quality is lost, the resulting files are typically much larger than image and audio files compressed with lossy compression. For example, a file compressed using lossy compression may be 1/10th the size of the original, while lossless compression is unlikely to produce a file smaller than half of the original size.
Lossy compression results in quality loss, which may not be acceptable for some applications or users. Additionally, the original file, with original quality, cannot be recovered after compressing. So if you’re compressing files, ensure that you are using tools or plugins that ensure the quality of the file isn’t being messed with. If you’re looking to reduce space while keeping the same quality of audio or image, use Lossless Compression tools. The good news is that most compression protocols are designed to keep the most important data while eliminating superfluous data so that your ultimate experience is maintained whether visual or auditory.
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