title: Add meta data to Drupal 7-uploaded files
body: <p>Is there a way to add meta data to the files I upload in my Drupal 7 website? I found several modules to add meta data to nodes, pages, or content types. (like NodeWords, Meta tags Node Type, ...)<br>
  But I want to create meta data for the files I upload. Is this possible and if it is, how do I do it?</p>