After purchasing the plugin, download the “WordPress Plugin Zip” file from order confirmation page or account’s downloads page. Then follow the steps below

1. Login to your website
2. Go to Plugins > Add New
3. Click Upload link
4. Browse to the plugin’s zip file (it is located in the archive you’ve downloaded after the purchase) and choose that file.
5. Click “Install Now” button
6. Wait while plugin is uploaded to your server
7. Click “Activate Plugin” button