Says it removes passwords and restrictions from PDF files. It's a freebie so grab it if you think you can use it. You can download and get the rego code before the expiry deadline, and install later.
EDIT: As pointed out by pennypacker (thanks), "If you don't have Facebook Take our eleven step questionnaire instead". Click away. At the end you have to supply an email address which you get your code sent to.
i got an error on installing?