For example, some viewers allow adding of annotations, signatures, etc Some software allows redaction, removing content irreversibly for security Extracting embedded text is a common feature, but other applications. [2] it offers free version with limited features to compress, convert and edit pdf documents 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 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.
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. Compliant browsers will announce what methods are supported to the server before downloading the correct format Browsers that do not support compliant compression method will download. Iloveyou, sometimes referred to as the love bug or loveletter, was a computer worm that infected over ten million windows personal computers beginning on 4 may 2000.
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