File Extension Mdi

The file extension MDI stands for Microsoft Document Imaging Format. Files with an mdi extension are developed from the Tagged Image File Format (TIFF) format. This is a proprietary format developed by Microsoft for the 2003 Office Suite. It appears in the menu of printers. The benefit of using MDI over a standard graphics format is that metadata can be stored with the image. This allows for annotations, the affixing of signatures, etc. The file may later be printed in hardcopy.


Regtask was able to clean up my computer and speed up the performance! I highly recommend it

Jo H.

My computer was always popping up with registry errors and I couldnt get rid of them. Regtask did the job for me and took less then 5 minutes to speed up my computer.

Samantha J.

I have to admit I'm no computer geek. When something goes wrong, I usually have to call someone to fix it and it costs me a lot of money. When my computer started to experience random freezes, I just used Regtask and now it works normally again.

David G.

My computer is 5 years old and runs extremely slow now. I was a bit sceptical about using Regtask, but just decided to give it a shot in the end and it worked out fantastically for me.

Michael C .


MDI files are most often used to save scanned documents in soft copy. Files are high resolution and tag-based, raster graphics. To transform them to Word documents, they must be run through optical character recognition (OCR) software.

Instructions on Using Regtask to Solve Computer Problems

Start Your Free File Scan
Regtask Software will scan your computer system to check if it can help to speed up your computer.

Scan is Done
Once the scan is complete, Regtask will prompt you to fix all the errors it discovered to speed up your computer

Errors are Fixed
The repair process takes less then 2 minutes for 94% of users. Just click on Continue and let Regtask speed up your computer immediately!


Operating system : Any Windows Version (including Vista)
Download size : 1MB (10 seconds on most Internet connections)

More Info Regarding File Extension Mdi

Office Document Images can be monochrome, grayscale or up to 24 bit color. All are compressed formats. Different compression types may be assigned to different pages of the same document. Both RGB and CMYK color are supported. Images with more than five samples per pixel, vector images, or a sample size larger than 32 bits are not supported.

Microsoft Office 2003 will open MDI files. For earlier versions of Office, and for other applications, the files should be saved in TIF format for compatibility. They can be opened with Microsoft Office 2007 with a bit of manipulation. There is also a converter which can be purchased, if there is a need to open MDI files without Microsoft Office.

The converter is called BugySoft MDI2PDF Convertor, and it will read MDI documents and translate them to the standard Portable Document Format (PDF). Files can then be opened with Adobe Reader. This converter comes in three versions, Free, Light, and Pro. The free version includes advertising, but is fully functional allowing users to convert, print and save files. The light version is the same as the free one without advertising, and the pro software eliminates the conversion step so that MDI documents may be opened directly in Adobe Reader.

The format can present some problems to the Vista operating system and Office 2007. This is not because it is incompatible, but because the document writer is not installed by default. A quick fix is to drag and drop the MDI document into a OneNote page where it can be opened.

Clicking on a document with an MDI extension will not result in auto-install of the software. The only permanent fix is to install Microsoft Document Imaging Writer manually. To do this one must begin with the uninstall command for Office. Then choose Change, Add or Remove Features, and Office Tools. Then you can choose Microsoft Document Image Writer and Run from My Computer. This will install the virtual printer which will create the MDI documents. These directions apply to all versions of Office 2007.

There may be issues with Microsoft Service Pack 3 breaking the association of files with the Document Image Writer, even though the Writer is properly installed. If the document can be opened choose File / Print. Then in the Name box, select Microsoft Office Document Image Writer as the desired printer. Choose Properties / Advanced, then MDI under Output format, and OK.

If the documents will not open at all this may work. In the Writer, choose Tools / Options and Reset under default programs. Then navigate in Explorer to a file with the MDI extension. Click to open it. It will then ask what program to open it with. Select Microsoft Document Image Writer and then check the box saying that this type of file should always be opened with that program.

Other problems with Document Image Writer following the installation of Service Pack 3 have been reported. Not all of these problems have been officially addressed, but the solutions seem to be involved with removing updated drivers until the program works again. The file mspview.exe has a 2007 version and a 2003 version, and the 2003 version must be used to make the program work properly.

© 2008 All rights reserved.