.IDM File

File extension idm is associated with the Ulead Photo Express, a tool for Microsoft Windows operating system that allows users to edit and enhance photo images. These .idm files contains some kind of internal data.

How to open:

As far as we know, these .idm files are only used in Ulead Photo Express.

How to convert:

It does not seem to be possible to convert this type of .idm file to anything else.