PDFBaba
Online PDF Tool

Protect PDF

Add AES-256 password protection to PDFs.

Features

Strong encryption
Owner/user password
Secure output

How to use

  1. 1

    Upload your PDF file.

  2. 2

    Provide the required password and click protect file.

  3. 3

    Download the processed PDF.

Related tools

unlock pdfwatermark pdfadd page numbers

Protect file

PDF up to the server upload limit (default 100MB).

Drop files here or browse

PDF files up to 100MB

Frequently Asked Questions

Is Protect PDF free to use?

Yes. This tool is available for free with no account required for basic usage.

Are files secure when using Protect PDF?

Uploaded files are processed temporarily and automatically removed after one hour.

How do I get the best result with Protect PDF?

Use clean source files and review output after processing, especially for complex protect pdf workflows.

Files are automatically deleted after one hour for privacy.