How to Password Protect a PDF (Free, No Signup, No Upload)
Password protect PDF with AES encryption and set permissions on printing, copying and editing. Add your one PDF and get a password-protected PDF — no upload, no signup, no watermark.
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What you can do with Encrypt PDF
User password to open the file
Restrict printing, copying, editing and annotating
Encryption happens locally, so the password never travels
How to how to password protect a pdf in 3 steps
Add the PDF
Load the document to lock.
Set the password and permissions
Choose what the recipient may do with the file.
Download the protected PDF
The encrypted file is generated on your device.
Before a document leaves your organisation you usually want one of two things: a lock on it, or the traces removed from it. Encrypt PDF applies that change locally, which matters because the file and the password never travel over the network. Keep an unencrypted master copy — passwords on PDFs are easy to lose.
No upload
Your one PDF are read locally with JavaScript and WebAssembly — for this tool, nothing is sent to a server.
No signup
No account, no email, no credit card, no trial to remember.
No watermark
What you download is the real file — clean, unmarked and print-ready.
Encrypt PDF FAQ
What do I get back after using Encrypt PDF?
You get a password-protected PDF.
What does it cost?
Nothing. You get the full tool with no signup, no email and no watermark, and there is no limit on how many files you process.
Where are my files processed?
In your own browser tab. Nothing is uploaded to a server, so your files stay on your machine — close the tab and the data is gone.
Does it work on a phone, and can I use it offline?
Yes. The page works in any modern browser on desktop, tablet or phone, and once it has loaded it keeps working with no connection.
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