Number of files on a computer can reach tens of thousands in just a matter of months. In such cases even hundreds of GB's of hard disk space cannot accommodate that many files. The need to compress files arises for the sake of saving disk space. Windows XP and Vista include a tool to compress files and folders to make room on the hard disk. To do this, right click the partition/folder to be compressed and select the compress option. Older unused files can also be compressed using the native backup tool provided by the OS. It automatically compresses selected files in such case. To compress files in MAC OSx, additional software can be installed. Compress Files is one such software which supports a lot of archiving and compression algorithms. There are a number of different software that use these algorithms.
For high security, such software to compress files can be used to encrypt part of your hard disk. This is done by using a private password which is used for encryption. Multiple files can be bounded to one single file and then transferred over the Internet. This feature is mostly exploited in compressing email attachments. To compress files of image type some additional tweaking needs to be done. Choose JPEG, quality minimum to maximum, to apply compression that is suitable for grayscale or color images, such as continuous-tone photographs that contain more detail than can be reproduced on-screen or in print. JPEG2000 is another type of image compression algorithm which is lossless in nature. It is mostly used in streaming high quality videos over a network. Files Systems in Windows have an option for file compression. Compress Files to save disk space option can be enabled for NTFS type of file systems. This would ensure that the files are compressed both in the root folder and in the sub folders too. The file system becomes more compact and hence become much faster.
Such image formatting can be implemented using any image editing software. File compression can hence save time taken for upload or download and save valuable space on the hard disk as well.