How to password-protect a presentation or PDF before sending it

When a deck contains pricing, terms, or anything you wouldn’t want forwarded freely, you want a password on it. There are two ways to do that — and they’re not equal.

Option 1: password-lock the file

Most tools let you set a password on a PDF. It works, but it’s clunky: the recipient needs the password to even open the file, you can’t change or revoke it after sending, and once it’s unlocked it can be re-shared with no trace.

Option 2: a password-gated link (better)

Instead, host the deck and put the password on a tracked link. With Seendeck, marking a share link private shows a password screen; the deck is never delivered to the browser until the password is verified. Because you control the link, you can:

• Change or rotate the password without resending the deck.
• Set an expiry date, or revoke access entirely.
• Still see engagement analytics for who unlocked and read it.

The takeaway

A locked file protects a document; a gated link protects an asset you still control. For anything you’re actively pitching, the gated link wins — you keep security and get the engagement signal at the same time.