MDI File Type
- The quick factsWhat are MDI files and how to open them
Are you having problems opening a MDI 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 MDI file?
Files that contain the .mdi file extension are image files that are created by the Microsoft Office Document Imaging program. The MDI files created by this application are tag-based graphics that are commonly used when you print to the Microsoft Office Document Image Writer.
Files with the .mdi extension are very much like TIFF files, but the MDI file format is proprietary to the Microsoft application. Files with the .mdi extension can store text that is recognized by optical character recognition (allowing you to edit the text in the files with compatible software) as well as graphics and file layouts. These files can later be printed in hard copy.
How to open MDI files
Important: Different programs may use files with the MDI file extension for different purposes, so unless you are sure which format your MDI file is, you may need to try a few different programs.
While we have not verified the apps ourselves yet, our users have suggested 10 different MDI openers which you will find listed below.
Last updated: January 25, 2022
Suggest another file format using extension MDI
While we know of one file format using the .MDI file extension, there may be more. It is widespread that different programs use files with the same file extension for very different types of data. Please let us know if you are aware of a different kind of .MDI file.
Various apps that use files with this extension
These apps are known to open certain types of MDI files. Remember, different programs may use MDI files for different purposes, so you may need to try out a few of them to be able to open your specific file.
 | Microsoft Office | User submitted |
 | Microsoft Office Document Imaging | User submitted |
 | Adobe Acrobat | User submitted |
 | DaView | User submitted |
 | MDI Viewer for Microsoft Office | User submitted |
 | Stuffit Expander | User submitted |
 | Adobe Photoshop | User submitted |
 | HAANSOFT HWP | User submitted |
 | Picasa Photo Viewer | User submitted |
 | MDIConverter | User submitted |
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