Reading PDF meta

Hi everybody! On time I’m searching an easy way to read meta data like title,… from pdf documents. When I’m right, there’s no such class available in repository. What I found is libextractor http://gnunet.org/libextractor/index.php?xlang=English as a command line tool, and now I’m thinking about writing a small PHP class to access the output of this program. So my question is: Do you think such a class would make sense and if yes, does it make sense to write it as as PEAR class? Thanks, Chris