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Original file (875 × 656 pixels, file size: 9 KB, MIME type: application/pdf) This is a file from the Wikimedia Commons . Information from its description page there is shown below.
Original file (872 × 1,308 pixels, file size: 33.18 MB, MIME type: application/pdf, 564 pages) This is a file from the Wikimedia Commons . Information from its description page there is shown below.
Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts.
Original file (1,650 × 1,275 pixels, file size: 359 KB, MIME type: application/pdf) This is a file from the Wikimedia Commons . Information from its description page there is shown below.
File size is a measure of how much data a computer file contains or how much storage space it is allocated. Typically, file size is expressed in units based on byte . A large value is often expressed with a metric prefix (as in megabyte and gigabyte ) or a binary prefix (as in mebibyte and gibibyte ).
PDF's emphasis on preserving the visual appearance of documents across different software and hardware platforms poses challenges to the conversion of PDF documents to other file formats and the targeted extraction of information, such as text, images, tables, bibliographic information, and document metadata. Numerous tools and source code ...
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:
Original file (1,650 × 1,275 pixels, file size: 4.6 MB, MIME type: application/pdf) This is a file from the Wikimedia Commons . Information from its description page there is shown below.