I have a bunch of PDF-files sorted into folders like this:
Christie, Agatha/Agatha Christie - The Secret Adversary.pdf
Christie, Agatha/Agatha Christie - The Mysterious Affair at Styles.pdf
Trying out calibre I found that in most of the files the meta-information is really bad (the name including author and title, the pdf-creator puting his/her own name in the authors field instead of the real authors name, etc.) and as calibre uses that information the list of books is really useless to find anything at the moment.
What I would need is a piece of software that can go through all my PDFs and update the meta-data using information from the filenames and directories.
Is there anything out there that can do that?