- Microsoft Document Imaging Format
- see also Microsoft Office Document Imaging
Microsoft Document Imaging Format Filename extension
Internet media type
Magic number 0x5045 Developed by Microsoft Type of format Image file formats Extended from TIFF
MDI (Microsoft Document Imaging format) is a file format created by Microsoft for storing raster images of scanned documents together with optional annotations or metadata which can include the text of the document, generated by OCR. MDI is a proprietary format - the specifications have not been made public by Microsoft, and MDI files can only be produced or read by certain Microsoft software, in particular the Microsoft Office Document Imaging (MODI) module included in Microsoft Office 2003 and later versions.
Applications in Microsoft Office 2010 can no longer open MDI files. This is because the MODI module is fully deprecated in Office 2010.
Relation to TIFF
It is known that MDI is a variant of TIFF (see Brad Hards references below). Key differences from TIFF:
- Magic number is 0x5045 (ASCII 'EP'?) (instead of 0x4D4D 'MM' or 0x4949 'II').
- Three proprietary image compression formats are used.
- Numerous proprietary tag values are used.
- About Microsoft Document Imaging Format (MDI): Brief overview by Microsoft.
- Notes on Microsoft Document Imaging file format, by Brad Hards
- "Microsoft Document Imaging status / snapshot" by Brad Hards
This article related to a type of software is a stub. You can help Wikipedia by expanding it.