Real encryption
The whole document is encrypted with AES-256, the PDF standard’s strongest option. Without the password the file is unreadable, not just hidden behind a prompt.
Protect PDF
Lock PDFs with a password, encrypted with AES-256, and choose what people can do once they’re open. It all happens on this device.
Drop your PDFs here
or browse files
PDF files only · as many as you like
Add more PDFsDrop them here or browse files
Keep the password somewhere safe. It isn’t stored anywhere, so if it’s lost, so is the file. A password manager is the best place for it.
Never uploaded
Your PDF and your password stay in this browser tab. There’s no server to send them to: the encryption code runs right here.
About restrictions
Print, copy and edit restrictions are honoured by Acrobat, Preview, Chrome and other readers, but they’re a request, not a lock. Only a password to open truly keeps people out.