MDI

File Format
Name	MDI
Ontology	Electronic File Formats Graphics MDI ; ; ;
Extension(s)	.mdi
MIME Type(s)	image/vnd.ms-modi

MDI is a proprietary image format used by Microsoft Office Document Imaging.

It is almost identical to TIFF, but has a different header, and may use one of several undocumented compression schemes.

Identification

Files begin with bytes 45 50 2a 00.

The compression schemes are reportedly known by the following names:

File Format
Name	MDI
Ontology	Electronic File Formats Graphics MDI
Extension(s)	`.mdi`
MIME Type(s)	image/vnd.ms-modi