wowPDF

Password Protect a PDF File

Encrypt your PDF with a password to keep your documents private and secure.

PDF Tools Auto-delete files Free

Upload & run

Drag & drop your file here
or click to browse
Accepted: .pdf

Files are processed temporarily and deleted automatically after conversion.

How this Password Protect PDF Online works

  1. Upload your .pdf file.
  2. Run the tool to process your document.
  3. Download the result instantly. Files are auto-deleted.

Upload your file, run the tool, then download the result instantly. We process files in a temporary workspace and delete them automatically after the output is created.

FAQ

How do I password protect a PDF?
Upload your PDF, set a password, and download the protected file.
What encryption is used?
Industry-standard PDF encryption is applied to secure your document.
Can I restrict printing or copying?
This version sets an open password. Permission controls can be added in future updates.
Is this PDF protection tool free?
Yes — you can password-protect PDFs online for free.
Do you store my files?
No. Files are deleted automatically after protection is applied.