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Password-protect a PDF

Encrypt a PDF with AES-256 so it needs a password to open. You can also choose what it allows once it’s open.

Your files never leave your browser. Nothing is uploaded, anywhere.

Drop your PDF here

or

No limit on file count or size — only your computer’s memory.

How it works

  1. Drop in your PDF.
  2. Choose a password, and what the document allows.
  3. Save the protected copy — and keep the password somewhere safe.

Questions

Which encryption is used?
AES-256, the strongest the PDF format provides, which every recent reader can open.
What if I forget the password?
The document is lost: nobody, us included, can open it again. We never see the password — it doesn’t leave your browser.
Are the restrictions (printing, copying) reliable?
Honest readers respect them, but they don’t protect the content: anyone who can open the file can get round them. Only the open password truly encrypts.
Is my file uploaded anywhere?
No. Everything happens in your browser. Nothing is uploaded.