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  2. PDF - Wikipedia

    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 ...

  3. History of PDF - Wikipedia

    The Portable Document Format (PDF) was created in the late 1990s 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 is under the control of International Organization for Standardization Committee of volunteer ...

  4. PDF/A - Wikipedia

    PDF/A is an ISO-standardized version of the Portable Document Format (PDF) specialized for use in the archiving and long-term preservation of electronic documents. PDF/A differs from PDF by prohibiting features unsuitable for long-term archiving, such as font linking (as opposed to font embedding ) and encryption. [1]

  5. List of PDF software - Wikipedia

    DigiSigner: free online PDF viewer java applet with additional function to digitally sign PDF documents. Docstoc: a web service which allows viewing PDF documents online. Issuu: a web service which allows viewing PDF documents online. Google Docs: a web service which views PDF documents as PNG images in the browser.

  6. Adobe Acrobat - Wikipedia

    Adobe Acrobat is a family of application software and Web services developed by Adobe Inc. to view, create, manipulate, print and manage Portable Document Format (PDF) files. [18] The family comprises Acrobat Reader (formerly Reader), Acrobat (formerly Exchange) and

  7. PDF/X - Wikipedia

    PDF/Exchange (Print production) PDF/X is a subset of the PDF ISO standard. The purpose of PDF/X is to facilitate graphics exchange, and it therefore has a series of printing-related requirements which do not apply to standard PDF files. For example, in PDF/X-1a all fonts need to be embedded and all images need to be CMYK or spot colors.

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