Download and install WPDM - Premium Packages plugin through WordPress admin panel.
If you want to install this plugin via FTP client like FileZilla, unzip this plugin to your computer. Upload "wpdm-premium-packages" directory to your sites “wp-content/plugins/” directory.
Now search for WPDM - Premium Packages in your WordPress admin panel by going Plugins -> Installed Plugins.
Activate WPDM - Premium Packages plugin by clicking “Activate” link which is listed below the title WPDM - Premium Packages.
If you successfully Activate this plugin, you will see a message “Plugin activated.” at the top of the page. You will also notice several sub-menu under Downloads menu in your WordPress admin panel.