While viewers cannot edit the original file on your drive, they can download a local copy to their computer and modify that version. However, as the file owner, you have the ability to restrict these actions to keep your content "view-only" in the literal sense. How to Prevent Viewers from Downloading Files
Yes, by default, any user with "Viewer" or "Commenter" access to a Google Drive file . can viewer download file from google drive
If you want to share a file but prevent the recipient from saving a copy, follow these steps: While viewers cannot edit the original file on