[Zope] downloading and uploading docs for user view on zope site

Hi, I'm using Zope-2.6.2 and am building a web site for our company's major products. One item of functionality I'd like to have is the opportunity of an administrator to be able to upload docs or pdfs which members can then download onto their local machines. Just would like some advice as to which is the best zope add-on to do this ... Cheers Ruth