PDF File Type

- The quick facts

What are PDF files and how to open them

Are you having problems opening a PDF file or just wondering what they contain? We explain what these files are used for and show you software that we know can open or otherwise handle your files.

What is a PDF file?

PDF files have multiple uses, and Adobe Portable Document Format is one of them.

Adobe Portable Document Format

PDF stands for portable document format. Adobe Systems created this universal document file format in 1993. PDF files can preserve the formats, fonts, drawings, and other file components of virtually any electronic document file and present it in a universal format.

PDF files are cross-platform files, which means they can be read on both Mac and Windows operating systems and mobile phones using Android or iOS. Many of today's eBook publishers use PDF format for publishing. PDF files are also used by businesses and individuals to distribute documents and literature.

How to open PDF files

We have identified 6 PDF openers that are compatible with this specific type of PDF file.

Programs that open Adobe Portable Document Format files

Last updated: June 29, 2022

All known file formats using extension .PDF

While Adobe Portable Document Format is a popular type of PDF-file, we know of 6 different uses of the .PDF extension. Different software may use files with the same extension for different types of data.

Expressware Printer Definition File

Printer definition file for the MS-DOS database File Express by Expressware. These files contain various printer configuration settings, which enable File Express to print data correctly on different printers.

You usually do not need to edit or view these files, as they only contain information usable by the software program that uses them.

More file formats using the PDF extension

Through our research of PDF files, we know that the following formats exist. However, we have not yet analyzed them in detail.

  • GraphiCode Programmable Device Format
  • Novell System PrintDef Device Definition
  • WordStar Printer Description File

Help us help others

File.org helps thousands of users every day, and we would love to hear from you if you have additional information about PDF file formats, example files, or compatible programs. Please use the links below or email us at submit@file.org to discuss further.