.MDI File Extension

Microsoft Office Document Imaging File

Image File
The MDI file format was created by Microsoft and was first used in their Office XP application suite. The format is very similar to the popular PDF format but is proprietary so the exact specifications have not been released to the public.

The MDI format itself is used to store raster images of scanned documents but uses better compression, resulting in smaller file sizes compared to the popular scanning file format, TIFF.

Despite the smaller file size of the MDI format, it is recommended that you save your scanned documents in the TIFF format which is more compatible with other software packages.

Other .MDI file extensions
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    Comments (2)
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    Microsoft Office Document
    2008-04-13 16:14:44
    MDI2PDF Converter is an easy-to-use file conversion utility to convert MDI (Microsoft Document Imaging Format) files or any image files (JPG, GIF, PNG, TIFF, BMP) to de-facto data presentation standard format - PDF. After the conversion, the PDF file can be opened with the free Adobe Acrobat Reader. The Pro version of MDI2PDF allows you to open the MDI file DIRECTLY in Adobe Acrobat Reader.
    2011-03-26 17:13:45
    The free version really doesn't let you do anything but look at it.