PDF File Management

[KindaHandy]

At work we were recently told we had to submit all our documents to another department in PDF format. We have Acrobat Pro 8 to create and combine the PDF documents as needed. However, we manage about 20,000 case files per year, and several different people will be creating the PDF documents which will be assembled into multiple page case files by me. Each of these case files will have a number, defendant name, court date, and other criteria that I would like to be able to search by at a later time to locate, combine, and distribute the documents. The DMS (Document Management Systems) I've found look a little too expensive. Would anyone have a more reasonably priced solution?

The organizer included with Acrobat doesn't have the functionality I'm looking for - it won't let me batch process files to assign metadata.

Any suggestions would be greatly appreciated.


Thank you in advance,

-Brian