Set an open password with AES-256 encryption directly in your browser.
The PDF and passwords are processed in your browser with QPDF WebAssembly.
QPDF WebAssembly (~1.7 MB) is loaded from a CDN the first time you protect a file. The PDF is not uploaded to this website server.
PROTECT PDF ONLINE
Protect a PDF with an open password when you want recipients to enter a password before viewing the document. The tool uses browser-based PDF encryption and creates a new protected copy for download.
Use a unique password that is difficult to guess, and share it through a separate communication channel when possible.
Store the original file safely. Losing the password can make it difficult or impossible to access the protected copy later.
The protection workflow uses QPDF WebAssembly in your browser so the PDF does not need to be uploaded to the website server for encryption.