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PDF Toolkit

Encrypt PDF

Encrypt PDF documents and set detailed permissions.

Runs in your browser Free · No sign-up

or drop file here

PDF · up to 50 MB

Anyone opening the PDF will need this password.

Required to change permissions. A random one is generated when empty.

Process:

Processed in your browser – your files never leave your device.

How to use Encrypt PDF

  1. 1

    Upload your file

    Drag and drop your file into the upload area or click "Choose file".

  2. 2

    Choose your options

    Adjust the settings and click "Encrypt PDF".

  3. 3

    Download the result

    Your file is ready in seconds. Download it – files are deleted automatically.

Frequently asked questions

Is Encrypt PDF free?

Yes. Encrypt PDF is completely free. There is no registration, no subscription and no watermark on your files.

Are my files safe?

Whenever possible your file is processed directly in your browser and never leaves your device. When server processing is needed, files are deleted automatically right after processing.

Does it work on my phone?

Yes. The tool works in any modern browser on Windows, macOS, Linux, Android and iPhone – nothing to install.

Related tools

Protect PDF Add a password to your PDF with strong AES-256 encryption. Use tool Unlock PDF Remove the password and restrictions from a PDF you have access to. Use tool Remove PDF Metadata View and remove hidden metadata such as author, title and dates. Use tool Add PDF Metadata Add or edit the title, author, subject and keywords of a PDF. Use tool