Protect PDF · AES-256 encryption
Password Protect PDF Online
Add an opening password to a PDF directly in your browser. Use a strong password and keep it safe, because DocVox cannot recover it later.
Private in your browserNo signupNo watermarkFree
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How to use it
- Open the PDF tools.
- Upload the PDF you want to protect.
- Enter a strong password.
- Choose print or copy permissions if needed.
- Protect and download the encrypted PDF.
Good to know
- If you forget the password, DocVox cannot recover it.
- Print/copy restrictions depend on whether the PDF reader respects them; the opening password is the main protection.
FAQ
Is the PDF really encrypted?
Yes. DocVox uses QPDF compiled to WebAssembly for real PDF password protection in the browser.
Can I recover a forgotten password?
No. Keep the password somewhere safe.
Do permissions stop all copying?
PDF permissions are respected by many readers but can be ignored by some software. The password is the important part.