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  2. PDF - Wikipedia

    en.wikipedia.org/wiki/PDF

    A PDF file is organized using ASCII characters, except for certain elements that may have binary content. The file starts with a header containing a magic number (as a readable string) and the version of the format, for example %PDF-1.7.

  3. History of PDF - Wikipedia

    en.wikipedia.org/wiki/History_of_PDF

    Documents containing Adobe extended features still carry the PDF base version number 1.7 but also contain an indication of which extension was followed during document creation. [21] PDF documents conforming to ISO 32000-2 carry the PDF version number 2.0, and are known to developers as "PDF 2.0 documents".

  4. Comparison of e-book formats - Wikipedia

    en.wikipedia.org/wiki/Comparison_of_e-book_formats

    Plucker is a free and open-source mobile and desktop e-book reader application with its own associated file format and software to automatically generate Plucker files from text, PDF, HTML, or other document format files, web sites or RSS feeds. The format is public and well-documented.

  5. Voices: Why books are essential to make us laugh and ... - AOL

    www.aol.com/voices-why-books-essential-us...

    Authors must remain true to their calling, unimpeded by those who may wish to impose limits on their imagination, writes Queen Camilla

  6. PDF/A - Wikipedia

    en.wikipedia.org/wiki/PDF/A

    PDF is a standard for encoding documents in an "as printed" form that is portable between systems. However, the suitability of a PDF file for archival preservation depends on options chosen when the PDF is created: most notably, whether to embed the necessary fonts for rendering the document; whether to use encryption; and whether to preserve additional information from the original document ...

  7. Project Gutenberg - Wikipedia

    en.wikipedia.org/wiki/Project_Gutenberg

    His initial goal was to make the 10,000 most consulted books available to the public at little or no charge by the end of the 20th century. [7] On July 4, 1971, after being inspired by a free printed copy of the U.S. Declaration of Independence, he decided to type the text into a computer, and to transmit it to other users on the computer network.

  8. Classic book - Wikipedia

    en.wikipedia.org/wiki/Classic_book

    Moby-Dick by Herman Melville, an example of a "classic book". A classic is a book accepted as being exemplary or particularly noteworthy. What makes a book "classic" is a concern that has occurred to various authors ranging from Italo Calvino to Mark Twain and the related questions of "Why Read the Classics?"

  9. Wikibooks - Wikipedia

    en.wikipedia.org/wiki/Wikibooks

    Wikibooks differs from Wikisource in that Wikisource collects exact copies and original translations of existing free content works, such as the original text of Shakespearean plays, while Wikibooks is dedicated either to original works, significantly altered versions of existing works, or annotations to original works.