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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. [ 2 ][ 3 ] Based on the PostScript language, each PDF file encapsulates a complete description of a fixed-layout flat document, including the text ...

  3. History of PDF - Wikipedia

    en.wikipedia.org/wiki/History_of_PDF

    History of PDF. The Portable Document Format (PDF) was created by Adobe Systems, introduced at the Windows and OS/2 Conference in January 1993 and remained a proprietary format until it was released as an open standard in 2008. Since then, it has been under the control of an International Organization for Standardization (ISO) committee of ...

  4. List of PDF software - Wikipedia

    en.wikipedia.org/wiki/List_of_PDF_software

    This is a list of links to articles on software used to manage Portable Document Format (PDF) documents. The distinction between the various functions is not entirely clear-cut; 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 ...

  5. List of file signatures - Wikipedia

    en.wikipedia.org/wiki/List_of_file_signatures

    Interleaf PrinterLeaf / WorldView document format (now Broadvision QuickSilver) 6E 2B 31 00: n+1: 344 nii Single file NIfTI format, used extensively in biomedical imaging. 6E 69 31 00: ni1: 344 hdr Header file of a .hdr/.img pair in NIfTI format, used extensively in biomedical imaging. 52 41 46 36 34: RAF64: 0 Report Builder file from Digital ...

  6. QuickTime - Wikipedia

    en.wikipedia.org/wiki/QuickTime

    QuickTime was created in 1991, when the concept of playing digital video directly on computers was "groundbreaking." [2][3] QuickTime could embed a number of advanced media types, including panoramic images (called QuickTime VR) and Adobe Flash.

  7. VP9 - Wikipedia

    en.wikipedia.org/wiki/VP9

    VP9 is an open and royalty-free [1] video coding format developed by Google. VP9 is the successor to VP8 and competes mainly with MPEG's High Efficiency Video Coding (HEVC/H.265). At first, VP9 was mainly used on Google's video platform YouTube. [2][3] The emergence of the Alliance for Open Media, and its support for the ongoing development of the successor AV1, of which Google is a part, led ...

  8. QuickTime File Format - Wikipedia

    en.wikipedia.org/wiki/QuickTime_File_Format

    The format specifies a multimedia container file that contains one or more tracks, each of which stores a particular type of data: audio, video, or text (e.g. for subtitles). Each track either contains a digitally-encoded media stream (using a specific format) or a data reference to the media stream located in another file.

  9. List of open file formats - Wikipedia

    en.wikipedia.org/wiki/List_of_open_file_formats

    An open file format is a file format for storing digital data, defined by a published specification usually maintained by a standards organization, and which can be used and implemented by anyone. For example, an open format can be implemented by both proprietary and free and open source software, using the typical software licenses used by each. In contrast to open formats, closed formats are ...