The only way to extract documents from the Document Server is to install the File Format Converter before inputting the documents and also have it installed on the new product...that ship has probably already sailed. We usually use a stack of Post-it notes and manually print them out and input them. Very tedious, but the only method that really works that I know of.
When configured properly the Mac drivers should be able to do most everything the Windows drivers can...finding a user knowledgeable enough or learning how to do it yourself is another ball of wax.