FTP Dropzone is a drag and drop application, that uploads the files you drop on it to a folder on an FTP server.
FTP Profiles are used to identify where to upload files to.
Drag and drop is also possible on a shortcut to the application, the application does not need to be running.
The passwords of the FTP profiles you enter are encrypted in the configuration file.
After upload the URL of the newly uploaded file (or files) is available in the Clipboard. This makes it easy to e.g. upload a zip file to your FTP server and then paste the URL to the file into an email.