SharePoint supports securing / restricting access to files using IRM / DRM / RMS. The Muhimbi Conversion Service currently does not have the ability to open these secured files as part of the conversion process.
To get around this restriction follow these steps:
- As part of your workflow / programming logic move the DRM protected file to a (hidden) Document Library that does not use DRM. This effectively strips DRM from the file.
- Convert this file using one of the Muhimbi Workflow Activities / The Muhimbi API.
- Delete the temporary file.