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.PDF File Extension

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File TypePortable Document Format File

DeveloperAdobe Systems
Popularity
4.0 (1009 Votes) Thanks for voting!
Rare Uncommon Average Common Very Common
CategoryPage Layout Files
FormatBinary

Binary

This file is saved in a binary format, which requires a specific program to read its contents.

What is a PDF file?

A PDF file is a multi-platform document created by Adobe Acrobat or another PDF application. The PDF format is commonly used for saving documents and publications in a standard format that can be viewed on multiple platforms. In many cases, PDF files are created from existing documents instead of from scratch.

More Information

PDF files can be edited with Adobe Acrobat, a commercial software program. The format can be opened and viewed using the free Adobe Reader application or the Adobe Reader plug-in, which is available for web browsers and other programs. Search engines such as Google and Bing index PDF documents, so the Adobe Reader plug-in may be used to display PDF files within the browser window. Some browsers, such as Google Chrome, provide native support for PDF viewing without the Adobe Reader plug-in. Firefox can view PDF files with the PDF.js extension.

PDF files may contain text, images, forms, annotations, outlines, and other data. They preserve fonts and formatting electronically across multiple platforms and appear the same on the screen as when printed on paper.

View the PDF definition for more information.

NOTE: OS X users can create a PDF from a document using the Print dialog box. First select "Print..." from the application's File menu, then choose "Save as PDF" from the PDF drop-down menu in the lower-left corner of the window.

Programs that open PDF files
Windows
File Viewer Plus
Adobe Reader
Adobe Acrobat DC
Nitro Pro 10
Foxit Reader
IMSI TurboPDF
Corel WordPerfect X7
Nuance Power PDF Standard
LibreOffice
Icecream PDF Converter
Web browser
with Adobe Reader plug-in
Mac
Apple Preview
Adobe Reader
Adobe Acrobat DC
Apple Pages
Nuance PDF Converter for Mac 4
Solid PDF to Word
LibreOffice
Web browser
with Adobe Reader plug-in
Linux
KPDF
KDE Okular
Evince
PDFedit
LibreOffice
Web browser
with Adobe Reader plug-in
Web
Google Drive
Microsoft OneDrive
iOS
Apple iBooks
Apple Pages
Adobe Acrobat Reader
Infraware Polaris Office
Good.iWare GoodReader
MobiSystems OfficeSuite Pro
Google Drive
Android
File Viewer for Android
Adobe Reader
Google Play Books
Kingsoft WPS Office for Android
Google Drive
Windows Phone
Adobe Reader
Updated 7/11/2016