Good uses
- Salary slips, Form 16, bank statements and ID copies you email to a landlord, HR or a loan agent.
- Invoices and contracts shared with clients.
- Medical reports sent over WhatsApp.
Send the password through a different channel (for example by SMS if the file goes by email). Need a strong one? Use the password generator.
How to use the Protect PDF with Password tool
- Choose the PDF.
- Type a strong password twice and pick what readers may do.
- Press Protect PDF and download the encrypted copy.
Why SaralKit?
- Free forever: no "credits", no trial, no premium tier, no watermark and no daily limit.
- No account, ever: nothing to sign up for. Just open the page and use it.
- No data stored: your files and the numbers you type are processed by your own browser. We never upload, store or see them.
- Works offline: once the page has loaded, most tools keep working without internet.
- Open source: anyone can read the code on GitHub.
Frequently asked questions
How do I password-protect a PDF for free?
Choose the PDF, type a password twice and press Protect PDF. The file is encrypted with AES-256 in your browser, and anyone opening it needs the password.
Can I stop people from printing or copying?
Yes. Untick Allow printing or Allow copying text. Most PDF readers respect these restrictions.
Is my PDF uploaded to set the password?
No. Encryption happens on your device; the file and password never leave it.
What if I forget the password?
AES-256 cannot be broken, so nobody can open the file without it. Keep the original unprotected copy or store the password safely.