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  • Lossless compression - Wikipedia
    By operation of the pigeonhole principle, no lossless compression algorithm can shrink the size of all possible data: Some data will get longer by at least one symbol or bit Compression algorithms are usually effective for human- and machine-readable documents and cannot shrink the size of random data that contain no redundancy Different
  • Smallpdf. com - Wikipedia
    Smallpdf is a Swiss online web-based PDF software, founded in 2013 [2] It offers free version with limited features to compress, convert and edit PDF documents [3] And its paid version offers advanced features like OCR, compress, and more [4]
  • PDF24 Creator - Wikipedia
    PDF encryption, decryption and signing; Change PDF information (author, title, etc ) Compress and shrink PDF files; Add a watermark or stamp a PDF file; Combine pages with a digital paper; Convert to and from PDF; Multiple PDF printers for different purposes since 7 7 0; Full featured and lightweight PDF reader since version 8 7 0
  • You Should *Never* Leave This Item in the Shower . . .
    It's a common mistake people make Most people don't think twice about keeping shower items in the bathtub or in a shower caddy
  • Lossy compression - Wikipedia
    Basic information theory says that there is an absolute limit in reducing the size of this data When data is compressed, its entropy increases, and it cannot increase indefinitely For example, a compressed ZIP file is smaller than its original, but repeatedly compressing the same file will not reduce the size to nothing Most compression
  • Data compression - Wikipedia
    Data compression aims to reduce the size of data files, enhancing storage efficiency and speeding up data transmission K-means clustering, an unsupervised machine learning algorithm, is employed to partition a dataset into a specified number of clusters, k, each represented by the centroid of its points
  • Data compression ratio - Wikipedia
    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:
  • Sumatra PDF - Wikipedia
    Sumatra PDF is a free and open-source document viewer that supports many document formats including: Portable Document Format (PDF), Microsoft Compiled HTML Help (CHM), DjVu, EPUB, FictionBook (FB2), MOBI, PRC, Open XML Paper Specification (OpenXPS, OXPS, XPS), and Comic Book Archive file (CB7, CBR, CBT, CBZ) [3]


















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