Few simple questions

Is possible to host files only on Google Drive and show Folder tree with files contained in the website?

Hi,

Thanks for contacting us here about this extension.

can I replicate Drive folders structure on my website?

Our plugin can be synced with Google Drive. With your existing folders structure (not including files) on Google Drive can be synced to our plugin.
Our developer will help you after purchasing. Normally, a root folder will be generated on Google Drive after connecting to our plugin.

The plugin can show PDF's thumbnail (like pdf cover page) instead of icon?

Yes, you can use our Joomunited previewer option. Then you can use our Preview theme to display the thumbnails.
Please go here for more details:
https://www.joomunited.com/wordpress-documentation/wp-file-download/226-wp-file-download-themes#toc-preview-theme-preview
https://www.joomunited.com/wordpress-documentation/wp-file-download/227-wp-file-download-configuration#toc-frontend-tab

I need to add files in Drive or in Wordpress?
Is possible to host files only on Google Drive and show Folder tree with files contained in the website?

If you want to store files on cloud server to offload your server, you can store files on Google Drive.

Please go here for more information:
https://www.joomunited.com/wordpress-documentation/wp-file-download/296-wp-file-download-addon-google-drive-integration#toc-3-how-it-works-what-can-i-do-with-gg-drive-
https://www.joomunited.com/wordpress-products/wp-file-download/google-drive-addon


Hope this helps!
Best Regards,