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  2. PDF - Wikipedia

    en.wikipedia.org/wiki/PDF

    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.

  3. HTML5 - Wikipedia

    en.wikipedia.org/wiki/HTML5

    HTML5 is designed so that old browsers can safely ignore new HTML5 constructs. [8] In contrast to HTML 4.01, the HTML5 specification gives detailed rules for lexing and parsing , with the intent that compliant browsers will produce the same results when parsing incorrect syntax. [ 126 ]

  4. List of filename extensions - Wikipedia

    en.wikipedia.org/wiki/List_of_filename_extensions

    Main page; Contents; Current events; Random article; About Wikipedia; Contact us

  5. List of filename extensions (A–E) - Wikipedia

    en.wikipedia.org/wiki/List_of_filename_extensions...

    3D object file format with normals (.noff, .cnoff) [51] NOFF is an acronym derived from Object File Format. Occasionally called CNOFF if color information is present. [52] COB [53] COBOL language source GnuCOBOL: COE [54] Coefficient file Xilinx ISE: COFF 3D object file format (.off, .coff) [55] OFF is an acronym for Object File Format. Used ...

  6. Filename extension - Wikipedia

    en.wikipedia.org/wiki/Filename_extension

    The exact definition, giving the criteria for deciding what part of the file name is its extension, belongs to the rules of the specific file system used; usually the extension is the substring which follows the last occurrence, if any, of the dot character (example: txt is the extension of the filename readme.txt, and html the extension of ...

  7. 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 ...

  8. List of file formats - Wikipedia

    en.wikipedia.org/wiki/List_of_file_formats

    While MS-DOS and NT always treat the suffix after the last period in a file's name as its extension, in UNIX-like systems, the final period does not necessarily mean that the text after the last period is the file's extension. [1] Some file formats, such as .txt or .text, may be listed multiple times.

  9. Comparison of e-book formats - Wikipedia

    en.wikipedia.org/wiki/Comparison_of_e-book_formats

    This limitation was addressed in 2001 with the release of PDF Reference 1.5 and Tagged PDF, [29] but third-party support for this feature was limited until the release of PDF/UA in 2012. Many products support creating and reading PDF files, such as Adobe Acrobat, PDFCreator and LibreOffice, and several programming libraries such as iText and FOP.