Free Password Protect PDF Tool Online
Password protect PDF files online with WPS PDF Tools. Set a password for one PDF and download a password-protected copy for more controlled access.
or click to select from your device
Your files stay private and are deleted after processing.
Why Choose WPS Password Protect PDF Tool?
Add Password Protection
Set a password that is required to open the protected PDF and help control who can access the document.
Keep Your Document in PDF Format
Password protect one PDF and receive a protected PDF result without choosing or converting to another output format.
Simple Password Protection
Upload your PDF, enter a new password, and let WPS prepare the protected file for download.
How to Password Protect a PDF Online
Upload your PDF file
Select or drag and drop one .pdf document that you own or are authorized to protect.
Set a new password
Click Password Protect PDF to open the dialog. If the source PDF is already protected, first provide its current document-open or permissions password when prompted. Then enter and confirm the new password, and submit. Use the eye button to show or hide each password, or choose Cancel to return without submitting.
Download the protected PDF
When processing is complete, download the password-protected .pdf file and store the new password securely.