Does this make my PDF completely secure?
A password limits who can open the PDF, but no tool can guarantee absolute security. Use a strong password and keep it private.
Password protect PDF
Set an open password on a PDF, locally in your browser, to help keep it private when you share it.
Frequently asked questions
Is my file uploaded to set the password?
No. The password is applied locally in your browser; the file is not sent to a server for this tool.
Can I remove a password later?
If you know the password, you can open the file; removing protection is a separate operation in the app.
Is it safe? Are my files uploaded?
These tools run locally in your browser — for supported local operations your files are not uploaded to a server. Processing the document on your own device avoids sending it to a third party.