Hello,
if by folder you mean on the server, then please check what you can achieve with ArchiveLink functionality. You will need also an assistance from the BASIS guys to get it working.
If you mean a folder on the user's PC without going through a save as popup, then I think it is not a very easy task to achieve even with a custom development, because you need to consider different OS, permissions, VPN setup etc.
If by folder you mean sending the outputs to a remote FTP server... you can 1) execute the ftp transfer from the application server to the ftp site with a z-program and get the log of ftp command execution in SLG1 or 2) use a script on the server to fetch the saved PDF and execute the ftp commands. Probably there is a better way to achieve such transfers, but these are the first that come to mind. An experienced system administrator might give you a more effective solution. The main problem with ftp transfers is that you cannot guarantee the connectivity to the remote site at the time you initiate the transfer.