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Protect PDF

Add a password and set permissions on your PDFs — encrypt printing, copying and editing in bulk, privately in your browser. No upload.

This tool lets you password protect a PDF and set permissions on it, encrypting a whole batch in your browser. Add a user or owner password to lock a PDF, and choose whether readers can print, copy or edit it. The encryption is applied on your own device with a standard AES handler. Your files and passwords are never uploaded.

Read the guide: How to Password-Protect a PDF

Drop PDFs here

PDF files — processed privately on your device

Permissions

Encryption is applied on save and runs entirely in your browser. Add at least one password to continue.

How it works

  1. 1

    Add PDFs

    Drop in the PDFs you want to protect — one or many.

  2. 2

    Set passwords & rights

    Add a user and/or owner password and choose what readers are allowed to do.

  3. 3

    Protect & download

    Encryption is applied on save. Download one file or the batch as a zip.

Instant & 100% private — nothing is uploaded

Your PDFs are processed instantly on your own device and are never sent to a server — so there are no upload waits, no size limits from us, and no copies kept anywhere.

Frequently asked questions

What’s the difference between the user and owner password?
The user (open) password is required to open and read the PDF. The owner password grants full control and can change the permissions. You can set either or both — opening with the owner password bypasses the restrictions.
What do the permissions control?
They decide what someone opening the file with the user password can do — print, copy text, modify, annotate, fill forms, and so on. Uncheck an action to block it.
Is the encryption secure?
Yes — the PDF is encrypted with a standard AES handler, applied entirely on your device. Your files and passwords are never uploaded, and the strength of the protection depends on choosing a strong password.
Can I protect many PDFs with the same password?
Yes. Add a batch, set the password and permissions once, and they’re applied to every file — downloaded together as a zip.

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