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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. History of PDF - Wikipedia

    en.wikipedia.org/wiki/History_of_PDF

    Development of PDF began in 1991 when Adobe's co-founder John Warnock wrote a paper for a project then code-named Camelot, in which he proposed the creation of a simplified version of Adobe's PostScript format called Interchange PostScript (IPS). [1]

  4. List of PDF software - Wikipedia

    en.wikipedia.org/wiki/List_of_PDF_software

    Zamzar: Online file converter; Smallpdf: Offers free (trial) online PDF conversion (PDF to other formats and vice versa) Editors. PDFescape: an advertising and fee supported web service to view, create forms, fill out forms, and edit PDF documents from a web browser (requires JavaScript to be enabled)

  5. PDF/A - Wikipedia

    en.wikipedia.org/wiki/PDF/A

    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]

  6. Machine-readable document - Wikipedia

    en.wikipedia.org/wiki/Machine-readable_document

    PDF/A is an ISO-standardized version of the PDF specialized for use in the archiving and long-term preservation of electronic documents. PDF/A-3 allows embedding of other file formats, including XML, into PDF/A conforming documents, thus potentially providing the best of both human- and machine-readability.

  7. Comparison of e-book formats - Wikipedia

    en.wikipedia.org/wiki/Comparison_of_e-book_formats

    The EPUB format is the most widely supported e-book format, supported by most e-book readers except Amazon Kindle devices. Most e-book readers also support the PDF and plain text formats. E-book software can be used to convert e-books from one format to another, as well as to create, edit and publish e-books.

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