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What is a DJVU File?


Question: What is a DJVU File?

Did you find a DJVU file on your computer and wonder what program should open it? Maybe someone emailed you a DJVU file but you're not sure how to use it. Perhaps you tried to open the DJVU file but Windows told you that it could not open it.

Before you can open a DJVU file (assuming it's even a file format that's intended to be viewed or edited), you'll need to determine what kind of file the .DJVU file extension refers to.

Answer: A file with the DJVU file extension is a DjVu file.

Other types of files may also use the DJVU file extension. If you know of any additional file formats that use the .DJVU extension, please let me know so I can update this information.

How To Open a DJVU File

The easiest way to open a DJVU file is to double-click on it and let your PC decide which default application should open the file. If no program opens the DJVU file then you probably don't have an application installed that can view and/or edit DJVU files.

Warning: Take great care when opening executable file formats received via email or downloaded from websites you're not familiar with. See my List of Executable File Extensions for a listing of file extensions to avoid and why.

A DJVU file is a graphics file format intended for scanned images. DjVu.org has a list of several programs that will open DJVU files. There's even a Windows 8 app for opening DJVU files called DjVu Viewer.

If you know of any others, please send me a quick email and let me know the name of the program so I can update this page.

Tip: Use Notepad or another text editor to open the DJVU file. Many files are text-only files meaning no matter the file extension, a text editor may be able to properly display the file's contents. This may or may not be the case with DJVU files but it's worth a try.

If you find that an application on your PC does try to open the DJVU file but it's the wrong application or if you would rather have another installed program open DJVU files, see my How To Change the Default Program for a Specific File Extension guide for making that change in Windows.

How To Convert a DJVU File

There are two main ways to attempt to convert a DJVU file to another file type:

  • Open the DJVU file in its default program and choose to save the open file as another file format.
  • Download and install Calibre, a free eBook conversion tool that supports converting from DJVU files.
  • Use a File Conversion Online Service or Software Program to convert the DJVU file to another file format.

The first option involving opening the DJVU file in its native program is preferable because it's both easier and will probably result in a more accurate file conversion. Of course if you don't have a program that opens DJVU files, or that program doesn't support converting them, a conversion tool like Calibre will be very useful.

Important: You cannot usually change a file extension (like the DJVU file extension) to one that your computer recognizes and expect the newly renamed file to be usable. An actual file format conversion using one of the methods described above must take place in most cases.

Still Having Problems Opening or Using a DJVU File?

See Get More Help for information about contacting me on social networks or via email, posting on tech support forums, and more. Let me know what kinds of problems you're having with opening or using the DJVU file and I'll see what I can do to help.

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