>> PDF file

PDF file format description

Many people share .pdf files without attaching instructions on how to use it. Yet it isn’t evident for everyone which program a .pdf file can be edited, converted or printed with. On this page, we try to provide assistance for handling .pdf files.

2 filename extension(s) found in our database.

.pdf - Portable Document Format Document

The PDF document files are related to Adobe Acrobat Reader. The PDF file is a Portable Document Format Document. Portable Document Format (PDF) is a proprietary file format developed by Adobe Systems for representing two dimensional documents in a device independent and resolution independent format.

Adobe Acrobat Reader
Document files
- / -
Portable Document Format Document related extensions:
AccuTrans 3D Drawing
iGrafx FlowCharter Document
Adobe InCopy CS3 Template
Home Group Overhead Document
Lotus Approach 97 Document
Septium Secure Document

.pdf - ArcInfo Preferences Definition Data

The PDF configuration files are related to ESRI ArcInfo. The PDF file is an ArcInfo Preferences Definition Data. ArcInfo is a complete and extensible geographic information system.

ESRI ArcInfo
Configuration files
- / -
ArcInfo Preferences Definition Data related extensions:
ZOC SSH Tunnel Settings Data
LaserWriter Configuration Data
Netscape Enterprise Server Authentication Data
Virtual PC Preferences Data
STAAD Project Settings Data
Java JRE Security Settings Data

Naturally, other applications may also use the .pdf file extension. Even harmful programs can create .pdf files. Be especially cautious with .pdf files coming from an unknown source!

Can't open a .pdf file?

When you double-click a file to open it, Windows examines the filename extension. If Windows recognizes the filename extension, it opens the file in the program that is associated with that filename extension. When Windows does not recognize a filename extension, you receive the following message:

Windows can't open this file:


To open this file, Windows needs to know what program you want to use to open it. Windows can go online to look it up automatically, or you can manually select one from a list of programs that are installed on your computer.

To avoid this error, you need to set the file association correctly.

The .pdf file extension is often given incorrectly!

According to the searches on our site, these misspellings were the most common in the past year:

df, dpf, ldf, odf, pcf, pd, pdb, pdc, pdd, pde, pdg, pdr, pdt, pdv, pef

Is it possible that the filename extension is misspelled?

Similar file extensions in our database:

Paradox Database
HPS Ancient Warfare Parameter Data File
Microsoft SQL Server Transaction Log
SSReader Digital Book
StuffIt Private File
MOUSE HD Results Data

Operating systems currently supports the following operating systems:

Windows XP/Vista, Windows 7/8, Windows 10, CentOS, Debian GNU/Linux, Ubuntu Linux, FreeBSD, Mac OS X, iOS, Android

If you find the information on this page useful, please feel free to link to this page.

If you have useful information about the .pdf file format, then write to us!