A private tool that keeps one person's e-paper editions in their own Google Drive.
Epaper Archive is a single-operator application. It watches a set of e-paper publications, downloads each new edition, decrypts it, and stores the result in a Google Drive folder chosen by the account owner — so the archive lives in that person's own Drive instead of on a server.
It asks for the scope https://www.googleapis.com/auth/drive and uses it for nothing else.
One person: the owner of the Google account that authorized it. The application is not offered to other users, it has no sign-up, and it shares nothing publicly.
What data is accessed and how it is handled is described in the privacy policy. In short: the owner's own Drive files, used only to store and serve the owner's own archive, and never shared.