I need to convert some mdi files to pdf. Microsoft does not seem to offer any working solution. Please help.

[michaelt427]

I need to convert several hundred MDI (Microsoft Document Imaging) files to PDF. Microsoft does not seem to offer any solutions that actually work. Please help?

[Test Screen Name]

Can you print these files? If so, you can buy Acrobat and print to PDF. One at a time.

[michaelt427]

No, I cannot even open them since I upgraded to Windows 10. As far as I know, the last version of Windows that supported "Microsoft Document Imaging" was Windows 7.

[try67]

You need to find an application that can open these files. Since it's a proprietary image format of Microsoft it can't be opened directly with Adobe applications.

[Test Screen Name · Accepted solution]

It was discontinued with Office 2007, I think. But Microsoft offer a tool to convert them to TIFF. It's a command line tool. Download MDI to TIFF File Converter from Official Microsoft Download Center

[MikeWo]

I've tried using an online service http://www.k2pdf.com/convert.html and the conversion was good for me last time.