Install Mail My Doc by Click2Mail
Follow these steps to install Mail My Doc by Click2Mail.
After opening a Google doc in the Google drive, click "Add-ons" and select "Get Add-ons".
Search for Click2Mail and when your search results are returned, click "+Free".
Select the Google account you want to associated with the add-on.
Review the access terms and click "Allow".
You'll receive confirmation that the Add-on was installed.
The Add-on will be available by selecting "Mail My Doc by Click2Mail" from the Add-ons menu.