Rights Management for Microsoft Word Files

[stjaba]

Is anyone familiar with rights management solutions for Microsoft Word files? I'm working on a project with a couple friends where we would essentially sell a couple Word documents for $15. We want to make sure the files can be uniquely protected so that they can't be shared(i.e. beyond password protection). Is there a realistic solution that won't cut too significantly into our profits?

[Arvoreen]

Would you be better off converting the Word document to PDF and protecting that instead?  I thought PDF had much better rights management capabilities there (and it is more accessible than Word documents).

[stjaba]

The documents need to be editable by users. So can't use .pdf.

[DontSayBanana]

The documents need to be editable by users. So can't use .pdf.

Are they templates or forms?  Because PDFs can actually be made editable for forms...