To install the extension purchased at Safemage.com, please follow the steps below:
1. Extract the contents of the downloaded package
2. Upload the contents of the 'extension' folder to the root folder of Magento 2
3. Connect to the server via SSH and navigate to the folder with Magento 2
4. Extecute the command: php bin/magento setup:upgrade
Done.
To install the extension purchased on Magento Marketplace, please follow the steps below:
A Safemage extension purchased from Magento Marketplace can be installed via the built-in Magento Component Manager of the Web Setup Wizard tool. To get a complete guide, please go to http://docs.magento.com/marketplace/user_guide/quick-tour/install-extension.html.