Protect PDF

Encrypt Your PDF with a Password

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Encrypted Files

We provide an easy way to secure PDF files. Just upload your file and it can be done within a few seconds.

Password Protection

It is recommended that the password length be no less than 8 characters to achieve a higher degree of confidentiality.

All Platforms Supported

Our PDF encryptor works on all systems and devices, such as Windows, Mac and Linux, iOS and Andriod.

No Limitations

You can get started with your work by accessing the service through any browsers installed on your device.

Free and Secure

You don't need to worry about the file security. We guarantee that no one has the ability to access your files.

Protection in the cloud

With LightPDF Encryptor, all files will be processed in the cloud and can be accessed on any device.

How to Protect PDF for Free

  • 1

    Upload files to the online Tool.

  • 2

    Hit "Protect PDF" to encrypt PDFs.

  • 3

    Click "Download" to save the files.

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