- Smallpdf. com - Wikipedia
Smallpdf was founded in 2013 by Mathis Büchi, Lino Teuteberg, and Manuel Stofer while they were living abroad in Korea The idea came from the need for their families to compress and send large documents via email [5] The initial version of the site featured a standalone PDF compression tool [6] Since then, the online platform has introduced over 16 PDF tools to convert, compress and edit
- Data compression ratio - Wikipedia
Data compression ratio, also known as compression power, is a measurement of the relative reduction in size of data representation produced by a data compression algorithm
- Lossless compression - Wikipedia
Lossless compression is a class of data compression that allows the original data to be perfectly reconstructed from the compressed data with no loss of information
- zstd - Wikipedia
Zstandard was designed to give a compression ratio comparable to that of the DEFLATE algorithm (developed in 1991 and used in the original ZIP and gzip programs), but faster, especially for decompression It is tunable with compression levels ranging from negative 7 (fastest) [6] to 22 (slowest in compression speed, but best compression ratio) Starting from version 1 3 2 (October 2017), zstd
- Deflate - Wikipedia
Encoder–compressor During the compression stage, it is the encoder that chooses the amount of time spent looking for matching strings The zlib gzip reference implementation allows the user to select from a sliding scale of likely resulting compression-level vs speed of encoding
- PDF - Wikipedia
Portable Document Format (PDF), standardized as ISO 32000, is a file format developed by Adobe in 1992 to present documents, including text formatting and images, in a manner independent of application software, hardware, and operating systems [2][3] Based on the PostScript language, each PDF file encapsulates a complete description of a fixed-layout flat document, including the text, fonts
- Lossy compression - Wikipedia
In information technology, lossy compression or irreversible compression is the class of data compression methods that uses inexact approximations and partial data discarding to represent the content These techniques are used to reduce data size for storing, handling, and transmitting content
- Image compression - Wikipedia
Image compression is a type of data compression applied to digital images, to reduce their cost for storage or transmission Algorithms may take advantage of visual perception and the statistical properties of image data to provide superior results compared with generic data compression methods which are used for other digital data
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