Choose a password and get a PDF that only opens with it, encrypted with AES-256, the strongest standard for PDF files.
Your files never leave your device
Use at least 10 characters mixing words, numbers and symbols, and share it through a different channel than the file, for example by phone or text message instead of the same email.
The PDF is encrypted with AES-256 by qpdf, a trusted open-source engine that runs inside your browser. Neither the document nor the password is uploaded.
The file is encrypted with AES-256, the strongest standard for PDF files, supported by all modern PDF readers.
The file cannot be opened without it and we cannot recover it, because the password is never sent to us. Keep a copy of the original file.
Readers that respect PDF permissions will not allow copying text or changing the document. Opening and printing still work with the password.
No. A new protected copy is created; your original stays as it is.
Remove the old password first with the Unlock PDF tool, then protect it again.
No. Encryption happens in your browser; neither the file nor the password leaves your device.