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A compression format using LZMA2 to yield high compression ratios. The LZMA algorithm is an LZ77 derivative, with entropy encoding in the form of range encoding. .z application/ x-compress: pack: Unix-like The traditional Huffman coding compression format. .Z application/ x-compress: compress: Unix-like The traditional LZW compression format ...
In February 2021 Zamzar expanded their tool and announced a new file compression service. [10] The compressor is visually similar to the conversion tool with a drag and drop download feature. As with the converter, users have the option to subscribe for a paid plan if they wish to compress multiple or larger files than the free service permits [11]
For example, uncompressed songs in CD format have a data rate of 16 bits/channel x 2 channels x 44.1 kHz ≅ 1.4 Mbit/s, whereas AAC files on an iPod are typically compressed to 128 kbit/s, yielding a compression ratio of 10.9, for a data-rate saving of 0.91, or 91%.
DCT is the basis for JPEG, a lossy compression format which was introduced by the Joint Photographic Experts Group (JPEG) in 1992. [35] JPEG greatly reduces the amount of data required to represent an image at the cost of a relatively small reduction in image quality and has become the most widely used image file format.
The RAR file format revision history: 1.3 – the first public version, does not have the "Rar!" signature. 1.5 – changes are not known. 2.0 – released with WinRAR 2.0 and Rar for MS-DOS 2.0; features the following changes: Multimedia compression for true color bitmap images and uncompressed audio. Up to 1 MB compression dictionary.
gzip is a file format and a software application used for file compression and decompression.The program was created by Jean-loup Gailly and Mark Adler as a free software replacement for the compress program used in early Unix systems, and intended for use by GNU (from which the "g" of gzip is derived).
InPage is a word processor and page layout software by Concept Software Pvt. Ltd., an Indian information technology company. It is used for languages such as Urdu, Arabic, Balti, Balochi, Burushaski, Pashto, Persian, Punjabi, Sindhi and Shina under Windows and macOS.
The Open Document Format for Office Applications (ODF), also known as OpenDocument, standardized as ISO 26300, is an open file format for word processing documents, spreadsheets, presentations and graphics and using ZIP-compressed [6] XML files. It was developed with the aim of providing an open, XML-based file format specification for office ...