Attachments stored in a DMS/Archiv

Hi,

I am pretty new to xwiki, installed in january, I have allready done a few things.

We are using a central DMS Systems, where PDF and other Documents are stored. Is there already a way to connect xiwiki with any DMS, to store in the DMS or get th files from there?

Or do I have to write an extention?

Thank you in advance,

Oliver