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2. KGB Archiver - Wikipedia

   en.wikipedia.org/wiki/KGB_Archiver

   It has ten levels of compression, from very weak to maximum. However, at higher compression levels, the time required to compress a file increases significantly. [3] As a consequence, the program uses memory and CPU intensively. KGB Archiver is free and open-source, released under the terms of the GNU General Public License.

3. List of PDF software - Wikipedia

   en.wikipedia.org/wiki/List_of_PDF_software

   A PDF creator and virtual PDF printer for Microsoft Windows PDF-XChange: Proprietary: Yes: PDF Tools allows creation of PDFs from many types of source input (images, scans, etc.). The PDF-XChange print driver allows printing directly to a PDF. A "lite" version of the print driver is free for non-commercial (home and academic) use. PrimoPDF ...

4. Data compression ratio - Wikipedia

   en.wikipedia.org/wiki/Data_compression_ratio

   Thus, a representation that compresses the storage size of a file from 10 MB to 2 MB yields a space saving of 1 - 2/10 = 0.8, often notated as a percentage, 80%. For signals of indefinite size, such as streaming audio and video, the compression ratio is defined in terms of uncompressed and compressed data rates instead of data sizes:

5. Executable compression - Wikipedia

   en.wikipedia.org/wiki/Executable_compression

   Executable compressors are often referred to as executable packers, runtime packers, software packers, software protectors, or even "polymorphic packers" and "obfuscating tools". A compressed executable can be considered a self-extracting archive , where a compressed executable is packaged along with the relevant decompression code in an ...

6. UPX - Wikipedia

   en.wikipedia.org/wiki/UPX

   UPX uses a data compression algorithm called UCL, [5] which is an open-source implementation of portions of the proprietary NRV (Not Really Vanished) [6] algorithm. [2]UCL has been designed to be simple enough that a decompressor can be implemented in just a few hundred bytes of code.

7. Ark (software) - Wikipedia

   en.wikipedia.org/wiki/Ark_(software)

   Ark is a file archiver and compressor developed by KDE and included in the KDE Applications software bundle. It supports various common archive and compression formats including zip , 7z , rar , lha and tar (both uncompressed and compressed with e.g. gzip , bzip2 , lzip or xz ).

8. Presentation program - Wikipedia

   en.wikipedia.org/wiki/Presentation_program

   LibreOffice Impress, one of the most popular free and open-source presentation programs. In computing, a presentation program (also called presentation software) is a software package used to display information in the form of a slide show.

9. LZX - Wikipedia

   en.wikipedia.org/wiki/LZX

   When Microsoft introduced Microsoft Compressed HTML Help, the replacement for their classic Help file format, they chose to compress all of the HTML data with the LZX algorithm. However, in order to improve random access speed, the compressor was altered to reset itself after every 64 kilobyte (65,536 bytes) interval and re-align to a 16-bit ...