The File Extensions Database


.IDM File Extension

  • Developer by: Ulead Systems
  • Category: Various data Files

What is an .IDM file?

.IDM is Ulead Photo Express messages 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.

How to solve problems with IDM files

  • Associate the IDM file extension with the correct application. On :
    Windows: Right click on any IDM file and then click "Open with" > "Choose another app". Now select another program and check the box "Always use this app to open *.IDM files". Mac: Right click (or Ctrl-click) the IDM file, then click "Open with" > "Other...". Then choose another program and check the "Always Open With" box. Linux: Right click on the file, and select "Open with" and choose another program. iPhone: Tap the file. If you do not see an app to open the file, then tap Share "Share" and choose an app. Alternatively, save the file. Then open the Files app Files app. There long-press on the file, then release your finger. You will see a black menu bar. Then tap "Share" and select an app. Android: Tap the Settings icon on your smartphone, then tap on the Apps section. There tap the Options icon in the top right-hand corner of the screen to change the default apps.
  • Update your software that should actually open .IDM is Ulead Photo Express messages file. Because only the current version supports the latest IDM file format. Search, therefore, e.g. on the Ulead Systems manufacturer website after an available .IDM is Ulead Photo Express messages file update.
  • To make sure that your IDM file is not corrupted or virus-infected, get the file again and scan it with antivirus software.