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PDF

Computing
portable document format: a format in which documents may be viewed

PDF

(computer science)

PDF

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. Documents can also be saved (exported) to PDF in Windows, starting with Windows 10, and the Mac, as well as with many conversion programs that convert various formats to PDF. However, although PDFs can be easily generated, editing PDFs requires Adobe Acrobat or other software that specifically features PDF editing.

PDFs Provide Font Freedom
PDFs solved a chronic problem, in which the target computer may not have all the fonts specified in a document. For a graphic artist, font selection is an important part of page design, but, in the past, only basic fonts were chosen to ensure they were available in every user's computer.

In contrast, PDF files do not rely on the fonts installed in the user's computer. Document designers are free to choose whichever fonts they have at their disposal, and those fonts are embedded within the PDF document. Because the fonts are not distributed for general use, they do not violate copyrights and patents, and most importantly, the page will render the same on every computer. See PDF/X and font incompatibility.

PDF Is a Superset of Adobe PostScript
PDF is often 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).
References in periodicals archive ?
In the case of a desktop-printer request, iCopyright.com takes a little longer -- still less than a minute -- to clear the license and prepare an Adobe Acrobat file using the Portable Document Format.
The cross-platform Acrobat file is next sent to the Pentagon, which then relays it through secure channels to Navy ships.
The program to create an Acrobat file costs about $200, but the program that allows users to see the files is free, and you can give this reader program to as many people as you want to see your files.
"The Acrobat file format is inherently revisable," he said, "and we'll do it in the next 18 months."
They may think they are providing an adequate level of security by using the built-in, password-protected encryption feature of Microsoft Office and Adobe Acrobat files. But this is not an optimal solution for several reasons.
By enhancing security controls for those collaborating with Autodesk files, as well as Acrobat files derived from Autodesk, enterprises can protect intellectual property and design ideas with greater confidence.
The new dataset follows the August release of an initial dataset offering, a 136.9 MB zip file containing the latest versions of everything from Microsoft Office and Adobe Acrobat files to image files.
Work product can be packed into Acrobat files and e-mailed to clients and colleagues for comments and approval.
Almost every computer in the world can open and display Acrobat files because Acrobat Reader is included in nearly all Web browsers and can be downloaded free from adobe.com.
By 2000, UMI Dissertation Services was able to provide copies of over one million theses and dissertations, with more than 100,000 available as Adobe Acrobat files. After its receiving university has accepted it, the electronic thesis or dissertation (ETD) is forwarded to UMI, which then creates an Adobe Acrobat version of the file that it provides to the supplying university.
Personal computer users have been urged to scan their PCs prior to 3 February 2006 to avoid being affected by the Nyxem-E Windows virus, which will reportedly delete Word, Excel, PowerPoint and Acrobat files on infected machines.