About PPAD
PPAD stands for Persistent Protection After Download — Digify's file encryption technology. Protection travels with the file itself, so it stays encrypted even after being downloaded, copied, or forwarded elsewhere. Owners can also apply additional protection settings that stay enforced wherever the file goes, and can revoke access or check who's viewed it at any time.
About PPAD for Gmail
PPAD for Gmail is a Chrome extension that lets you protect emails and attachments directly within Gmail with PPAD no need to change your existing workflow or tools. Once installed, an encryption option appears when a new email is being composed and you can also track and control access directly in Gmail.
Installing the extension
Install PPAD for Gmail from the Google Chrome Web Store.
Open Gmail. The first time you use it, you'll be prompted to activate the extension.
Google will ask you to grant two permissions:
Gmail — lets the extension display PPAD-protected emails inline and embed encryption into your outgoing drafts.
Drive — lets the extension store encrypted email content and attachments in a dedicated PPAD folder in your own Google Drive.
Once you approve the permissions, activation is complete and you will see options now encrypt your emails with PPAD in your compose window.