5 min read
Password-Protect a PDF Before You Email or Upload It
When AES encryption is worth the friction, and how it complements—not replaces—access controls.
A PDF password slows casual forwarding: anyone with the file still needs the passphrase to open it. That is useful for tax drafts, preliminary contracts, and personal identifiers.
Encryption does not stop someone who already has the password from resharing. Combine with least-privilege sharing and short-lived links when platforms support them.
Choosing a passphrase
Prefer a unique passphrase per document over reusing your email password. Share the passphrase through a different channel than the file when possible.
Document the password policy for your team so support staff do not ask users to email passwords in plain text.