
Add password protection to your PDF file.
Drag & drop your PDF file here
or
100% Secure
and private
Fast & Easy
Just a few clicks
High Quality
Original quality
PDF Studios Protect PDF lets you add a password to any PDF and control what others can do with it. You can restrict opening, printing, copying, or editing so only the right people can access the content. It is useful for contracts, financial statements, medical records, and any file you want to keep private. No account or software is required.
Drag and drop the PDF into the tool, or click to select it. The tool accepts all standard PDF types and sizes.
Enter a strong password. Make sure it is something you can remember or store safely, because PDF Studios does not save passwords.
Decide what others can do. You can allow or block opening, printing, copying text, and editing depending on your needs.
Click the Protect button and save the new file. The PDF will now require the password for the actions you restricted.
Yes. Adding password protection is completely free. There are no subscriptions, watermarks, or hidden fees.
Yes. Files are uploaded over HTTPS, processed securely, and deleted within 24 hours. We do not view or keep your documents or passwords.
No. Protect PDF runs in your browser. You can use it on any device without creating an account or installing software.
There is no strict limit. You can protect large PDFs, though very large files may take a little longer to upload and process.
All files are processed securely and deleted automatically within 24 hours. PDF Studios is free and requires no signup.