What metadata quietly controls
Metadata is the hidden label on a PDF, and it does more work than most people realize. The title decides what shows in a browser tab and in a reader's recent-files list; the author and subject feed document management systems and intranet search; keywords influence whether a file surfaces when someone searches a library. A file with a leftover draft title or a stranger's author name looks unprofessional and can be hard to find later. Editing these fields is a small step that makes documents look finished and behave predictably wherever they are stored, indexed or opened.