Newbie trying to deal with PDF articles-possible?

I am a total newbie to Hazel and to the kind of task I am trying to accomplish. I don't know if it can be done, and if so how, so please be kind to me.
I download a lot of academic pdfs from online databases such as JSTOR and Project Muse. They arrive in my downloads folder with a numeric name (I also have them set to open automatically in Skim). I want to rename them with the article title and move them to a 'process' file on my desktop. I tried setting up a Hazel workflow to do this, with url containing the name of the database, file type as pdf and the destination, but nothing happened, and I can't for the life of me work out how to pull the article title from within the pdf. Could someone please be generous enough to talk me through this?
Thanks,
I download a lot of academic pdfs from online databases such as JSTOR and Project Muse. They arrive in my downloads folder with a numeric name (I also have them set to open automatically in Skim). I want to rename them with the article title and move them to a 'process' file on my desktop. I tried setting up a Hazel workflow to do this, with url containing the name of the database, file type as pdf and the destination, but nothing happened, and I can't for the life of me work out how to pull the article title from within the pdf. Could someone please be generous enough to talk me through this?
Thanks,