Portable Document Format

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portable document format

[¦pörd·ə·bəl ‚däk·yə·mənt ′fȯr‚mat]
(computer science)
A computer file format for publishing and distributing electronic documents (text, image, or multimedia) with the same layout, formatting, and font attributes as in the original. The files can be opened and viewed on any computer or operating system; however, special software is required. Abbreviated PDF.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.

Portable Document Format

(file format)
(PDF) The native file format for Adobe Systems' Acrobat. PDF is the file format for representing documents in a manner that is independent of the original application software, hardware, and operating system used to create those documents. A PDF file can describe documents containing any combination of text, graphics, and images in a device-independent and resolution independent format. These documents can be one page or thousands of pages, very simple or extremely complex with a rich use of fonts, graphics, colour, and images.

http://adobe.com/products/acrobat/adobepdf.html.

["The Portable Document Format Reference Manual", Adobe systems, Inc. Addison-Wesley Publ. Co., ISBN: 0-201-62628-4].
This article is provided by FOLDOC - Free Online Dictionary of Computing (foldoc.org)

PDF

(Portable Document Format) The de facto standard for electronic document publishing from Adobe. Introduced in 1993, today there are billions of brochures, data sheets, white papers, forms and technical manuals on the Web in the PDF format.

Render, Save As and Edit
Adobe's free Acrobat Reader and many other applications can display and print PDF files. Various applications and conversion programs can save documents to PDF; however, editing them requires Adobe Acrobat or other software that specifically features PDF editing.

Non-Searchable Text
Most of the time, text within a PDF document can be searched as well as copied to another file. For copyright protection, PDFs can be saved as an image, which makes the text non-searchable and cumbersome to copy. However, PDF programs may offer an optical character recognition (OCR) feature that creates a text layer from the images, and that text can be searched.

Why PDFs Are Popular
Years ago, documents contained only a couple of basic fonts in order to display accurately because they relied on the installed fonts in the rendering device. However, with PDFs, document designers are free to choose whichever fonts they have at their disposal because the fonts are embedded within the PDF file itself and do not violate copyrights and patents. See PDF/X and font incompatibility.

PDF Is a Superset of Adobe PostScript
PDF is the preferred file format for sending documents to commercial print houses. If the commercial printer uses PDF imagesetters, no conversion is necessary. If it uses only PostScript hardware, the PDF files are converted to PostScript first. See PostScript, PDF/A, PDF/X, WWF, DjVu and XML Paper Specification.


PDFs Are Size Efficient
Compare the sizes of this PDF file with its JPEG and Microsoft Word (.doc and .docx) equivalents. These are all the same single-page text documents saved to four formats. Whereas the PDF and Word formats are aware of the file's contents, the JPEG image is always a matrix of pixels (see JPEG and DOC file).
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References in periodicals archive ?
<p>Reader is free software that lets you view and print files saved in Adobe Portable Document Format (PDF).
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And an in-house process to convert print ads into Adobe portable document format files for the Web will generate new revenue at a low cost: $80 a week versus $650 a week for vendors.
As part of the program, students and educators at participating campuses will be able to utilize course materials that will be made available as e-books based on the Adobe Portable Document Format (PDF).
EBSCO Publishing has announced the release of the latest version of EBSCO-host 3.1, which offers Adobe Portable Document Format (PDF) images and additional database-specific limiters.
Additional educational materials, available in Microsoft Word and Adobe portable document format (PDF), include descriptive module overviews, outlines, and summaries of the video information that may be printed and distributed.
The standards include Adobe Portable Document Format (PDF), JDF (Job Definition Format) job ticketing, Adobe PostScript, XML (Extensible Markup Language), and variable information workflow technologies.
The new release allows the viewing of Adobe Portable Document Format files on handheld computers with the Palm operating system installed.
The software will enable mobile-to-view content in the Adobe Portable Document Format (PDF) on Palm Powered handheld devices.
Available now on Adobe.com (http://createpdf.adobe.com), Create Adobe PDF Online is a paid subscription service that provides business users with a flexible and convenient way to create Adobe Portable Document Format (PDF) documents.