I'm looking for a way to programatically unlock a group of PDFs with the password I have been given (using vb.net, vbs or c#). The password is the same for all files and will remain the same for all future files. We receive groups of PDF's (60-150 files) from a partner on a daily basis. We have someone manually open each one, enter the password, print the file to new pdf (to remove the protection), and move the file to it's respective directory for users to access.
I need a way to run a small program (maybe inside of a specified folder) which will attempt to unlock all pdf files which reside in the folder with it. I can't seem to find any information on automatically unlocking pdf's using a given password.