I have a database which I use to hold about 600 PDF files, which allows me to filter and organize content through different tags.  However, we have some of our users which are asking if there's a way to download items in the database in bulk (specific amount not mentioned, but at least more than just one by one).

Has anyone heard of a way to do so, or if there's a 3rd party plugin which can enable this feature?

Thanks in advance for your help.