PDF Password Protect — what it does
Encrypts a PDF with a password, so only someone who knows it can open the document. The file is produced in your browser, which means the password is never transmitted anywhere — there is no server that could log it.
How to use PDF Password Protect
- Open the PDF.
- Set the password (and remember it — see the FAQ below).
- Protect the file.
- Download the encrypted PDF and share it with the password over a different channel, such as a phone call or a password manager share.
Worked example: a salary sheet sent by email
A payroll sheet goes to a client by email. Encrypting it with a password and sending the password by WhatsApp means an intercepted email is not enough to open the file. The document is encrypted on your own machine, so the payroll data plus its password never travel together through a third party.
At a glance
| Effect | The document can only be opened with the password you set |
|---|---|
| Where it runs | Entirely on-device — the password never leaves your machine |
| Sharing advice | Send the file and the password through two different channels |
| Keep a copy | Keep an unencrypted original in a safe place; the file itself is the only copy of that password |
Frequently asked questions
- What is PDF Password Protect?
- Encrypt a PDF with a password so only people who know it can open it.
- Is PDF Password Protect free to use?
- Yes — PDF Password Protect is free to use, with no sign-up, no install and no account.
- Does PDF Password Protect upload or store my data?
- No — PDF Password Protect runs entirely in your browser, so your text, files and results never leave your device.
- Do I need to install anything to use PDF Password Protect?
- No — it works in any modern browser (Chrome, Edge, Firefox, Safari) with no downloads, accounts or plugins.
- Can SarvTools recover the file if I forget the password?
- No. The password is not stored, logged or sent anywhere — there is no server to keep it on — so a forgotten password cannot be recovered by us or by anyone else. Keep it in your password manager before you close the tab.
- Does this stop someone from printing or copying the text?
- Encryption with a password controls opening the document. A permissions-only restriction (allow printing but not copying) is a different, much weaker control that most desktop readers let users ignore, so treat printed output as possible once the password is known.