Basic information about _PDF file

When there is a problem with opening files with the file extension _PDF(*._PDF or *._pdf), you do not need a computer expert. In most cases, using the helpful suggestions of experts contained in our website as well as appropriate programs, you can solve the problem with the _PDF file yourself.

There are 1 file types using the _PDF file extension in our database. In the further part of this page, you will find detail information about all the _PDF file with their brief description and a list of programs that support _PDF file sorted by operating systems. The table below provides useful information about the _PDF file extension. It answers questions such as:
  • What is the _PDF file?
  • How to open a _PDF file?
  • What programs do I need to open a _PDF file?
  • What programs help to create and edit a _PDF file?
  • How to convert _PDF files to another file format?
  • How to convert another files to _PDF file format?


1.Detail information about _PDF file extension: Adobe Portable Document Format

File type Adobe Portable Document Format Category Page Layout Files
Developer Adobe Systems File format N/A
Description _PDF file is a Adobe Portable Document Format developed by Adobe Systems. The _pdf file extension is associated with the PDF (Portable Document Format) developed by Adobe in 1993.

Portable Document Format is used to represent document independent of application software, operating systems and hardware.

PDF file stores complete description of document layout, texts, fonts, graphics used to visualize document.

The default file extension of Adobe Portable Document Format is pdf. However, sometimes is PDF document representing by extension _pdf, created for example by any e-mail client, or antivirus software due security reasons.

If your PDF viewer doesn't support opening _pdf files, simply rename _pdf to pdf extension and PDF document will be viewable in it.

MIME types:
application/pdf
application/x-pdf
application/acrobat
applications/vnd.pdf
text/pdf
text/x-pdf
application/x-bzpdf
application/x-gzpdf

Software programs that will open, edit or convert _PDF files

Windows
Adobe Acrobat
PDF Architect
Adobe Acrobat Reader
Foxit Reader
Calibre
Advanced PDF Repair
Adobe Creative Suite

macOS
Adobe Acrobat for Mac
Adobe Acrobat Reader for Mac
iBooks for Mac
Calibre for Mac
Adobe Acrobat for Mac
Adobe Creative Suite for Mac

Linux
Okular
Calibre for Linux
Calibre for Linux



How to convert _PDF files to another file format?

There are 1 records in our database eligible for _PDF files to another file format conversion. If you want to achieve _PDF to another files conversion, you may use the option.



Can't open a _PDF file?

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

”Can't open this file: example._PDF”。

To open this file, you install one of the applications from the list of software programs that you found here, you should be able to open, edit or convert the file with the _PDF extension without any issue.


Where I can download the application that support _PDF file?

If you do not know where you can download the application from our list, click on the link (which is the name of the program), you will find more information there on the location where to download the required application. Most often they are the websites of software manufacturers.


How to change file associations?

  • Right-click a file with the extension whose association you want to change, and then click "Open With".
  • In the "Open With" dialog box, click the program whith which you want the file to open, or click "Browse" to locate the program that you want.
  • Select the ”Always use the selected program to open this kind of file” check box.


Can I change the extension of _PDF files?

Changing the filename extension of a file is not a good idea. When you change a file's extension, you change the way programs on your computer read/open the file. The problem is, changing the file extension does not change the file format. Select a software program from our list and install it on your computer. If the file has not opened correctly, you have to look for a different software program from our list. Sometimes you have to repeat the operation several times.


What else may cause problems width open a _PDF file?

The reasons for the lack of the ability to open a _PDF file on your computer may be at least several. The easiest thing is to find a suitable application installed on your computer, which will open a _PDF file. If there is still something wrong, you might want to check:

  • Whether the _PDF file is damaged.
  • Whether the _PDF file is incorrectly linked in the registry entries.
  • Whether the _PDF file extension has been accidentally removed from the Windows registry.
  • Whether the installation of an application that supports the _PDF file format is incompletely.
  • Whether the _PDF file is infected.
  • Whether the drivers of the equipment used for opening a _PDF file are up to date.
  • Whether your computer has enough hardware resources to open a _PDF file.

If the _PDF file still not working with your software after eliminating the above shortcomings? That means that the problem is more complex and requires the help of a specialist.