best lossless image compression software

In lossy compression, the data in a file is removed and not restored to its original form after decompression. With this method, although file sizes are reduced, the reduction is less compared to reduction using lossy compression. This compression method is also known as reversible compression. The file can be decompressed to its original quality without any loss of data. For example, when a picture's file size is compressed, its quality remains the same. Lossless compression restores and rebuilds file data in its original form after the file is decompressed. It can be either lossless or lossy.Ī smaller-sized compressed file can be restored to its larger form - in its entirety or with some data loss, depending on the compression type - by decompression. What is file compression?ĭigital files such as image files are often 'compressed' to reduce their size and/or to change various attributes, such as:Ĭompression reduces the size of a file, often without appreciable loss of information.

When the file is uncompressed, some of the original information is not there, although the user may not notice it.

Lossy compression reduces a file by permanently eliminating certain information, especially redundant information. With lossless compression, every bit of data originally in a file remains after it is uncompressed, and all the information is restored. Lossless and lossy file compression describe whether all original data can be recovered when the file is uncompressed.

Best lossless image compression software