Home : File Types : PDF File

.PDF File Extension

NEW! Open .PDF files for FREE with File Viewer Lite.

File TypePortable Document Format File

DeveloperAdobe Systems
3.9 (638 Votes) Thanks for voting!
Rare Uncommon Average Common Very Common
CategoryPage Layout Files


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


Cross-platform document created by Adobe Acrobat or a program with the Acrobat plug-in; commonly used for e-mail attachments or for saving publications in a standard format for viewing on multiple computers; usually created from another document instead of from scratch; can be edited with Adobe Acrobat, a commercial program.

More Information

PDF files can be opened and viewed using the free Adobe Reader or the Adobe Reader plug-in, which is available for most Web browsers. Google, Bing, and other search engines now index PDF documents, so the Adobe Reader plug-in is commonly used when viewing search engine results. Some browsers, such as Google Chrome, provide native support for PDF viewing without the Adobe Reader plug-in. Also, 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 they will when printed on paper.

View the PDF definition for more information.

NOTE: PDFs can be created in Mac OS X by selecting "Print..." from an application's File menu. Then instead of clicking "Print," choose "Save as PDF" from the PDF drop-down menu in the lower-left corner of the window.

Program(s) that open .PDF files
Microsoft Windows LogoWindows
Adobe Reader
Adobe Acrobat DC
Foxit Reader
Sumatra PDF
Corel WordPerfect X7
Nuance Power PDF Standard
Solid PDF Tools
Informative Graphics Brava! Reader
Icecream PDF Converter
Google Chrome
Web browser
with Adobe Reader plug-in
Mac OS X LogoMac
Apple Preview
Adobe Reader
Adobe Acrobat DC
Apple Pages 5.5
Nuance PDF Converter for Mac 4
Solid PDF to Word
Wondershare PDF Editor for Mac 5
Google Chrome
Web browser
with Adobe Reader plug-in
Linux LogoLinux
KDE Okular
Google Chrome
Web browser
with Adobe Reader plug-in
Web LogoWeb
Google Drive
Microsoft OneDrive
iOS LogoiOS
Apple iBooks
Apple Pages
Quickoffice Pro
Adobe Acrobat Reader
MobiSystems OfficeSuite Pro
Google Drive
Android LogoAndroid
Adobe Reader
Google Play Books
Kingsoft WPS Office for Android
Google Drive
Updated 9/25/2015