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.PDF File Extension

File TypePortable Document Format File

DeveloperAdobe Systems
Popularity
4.0 (2021 Votes)
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

Screenshot of a .pdf file in Adobe Acrobat Reader DC

PDF file open in Adobe Acrobat Reader DC

PDF files can be edited with Adobe Acrobat, a commercial software program. The format can be opened and viewed using the free Adobe Acrobat Reader application or the Adobe Acrobat 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.

FREE DOWNLOAD
Open and view .PDF files with File Viewer Plus.
Programs that open PDF files
Updated 1/12/2017

About PDF Files

Our goal is to help you understand what a file with a *.pdf suffix is and how to open it.

The Portable Document Format file type, file format description, and Mac, Windows, Linux, Android, and iOS programs listed on this page have been individually researched and verified by the FileInfo team. We strive for 100% accuracy and only publish information about file formats that we have tested and validated.

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