Every tool you need to work with PDFs in one place

Every tool you need to use PDFs, at your fingertips. All are 100% FREE and easy to use! Merge, split, compress, convert, rotate, unlock, and watermark PDFs with just a few clicks.



How to Password Protect a PDF File

To secure a PDF file with a password using 256-bit AES encryption, follow these steps:

  1. Upload the PDF you want to protect.
  2. Enter a strong password to lock the document, setting viewing and editing permissions if necessary.
  3. Click the “Protect PDF” button and wait a few seconds for the process to complete. Once done, your secured file will be ready for download.

Password Protect PDFs for Free

In some cases, it’s important to restrict access to a PDF, allowing only authorized users with a password to view or edit it. With our PDF Protector, you can easily limit actions like viewing, printing, or editing.

Uncompromised Encryption

We use 256-bit AES encryption to ensure your PDF files remain secure. This level of encryption prevents unauthorized access by making it nearly impossible to crack or reverse-engineer the password.

Our Commitment to Security

We prioritize the privacy and security of your files. We encourage strong passwords and automatically delete files after processing to ensure your documents are safe.

Simple and Accessible

Our tools are designed for everyone, whether you’re a student, manager, or software developer. We’ve focused on creating an easy-to-use interface that provides a great experience for all users.

Cross-Platform PDF Protection

FreePDFConvert is an online tool that works across various platforms, including Windows, Mac, iOS, and Android. Protecting a PDF has never been easier or more accessible.

Additional PDF Tools

We offer a range of online PDF tools, including PDF to Word, PDF to Excel, file compression, page removal, and more to simplify your workflow.

How to Protect a PDF Without Adobe Acrobat

If you want to secure your PDF without Adobe Acrobat, you can easily set a password or limit certain actions, like disabling printing, to safeguard your sensitive information.

Secure Your PDF for Free

While PDFs are generally read-only, they can still be modified with the right software. To prevent unwanted changes or access, protect your PDF by setting a password before sharing.