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Encrypt PDF

Protect your PDF with AES-256 password encryption

FreeNo account required

Drop your file here

Up to 20 MB; the file is not stored after processing

How to use it

  1. 1

    Choose the file from your computer or Docly workspace.

  2. 2

    Set the available processing options to match the result you need.

  3. 3

    Start the operation, review the result and download the prepared file.

Tool features

Supported file types
PDF
Access
You can use it directly without creating an account.
Configurable options
Password

File security and privacy

Your files are used temporarily during processing, are not saved to a Docly workspace and the result is returned directly to you.

Review the security approach

Related document tools

Unlock PDF

Remove protection from a PDF whose password you know

Redact PDF

Permanently black out matching text; it is also removed from the content layer

Guides for this tool

PDF Encryption and Secure Sharing Guide

Password protect a PDF online, redact sensitive fields permanently and learn the safest way to send the file and its password to a recipient.

Read the step-by-step guide

Frequently asked questions

What encryption is used?

The file is protected with AES-256.

What if I forget the password?

Only you know the password and a forgotten one cannot be recovered, so store it somewhere safe.

Will the encrypted PDF open in any reader?

Yes. Standard PDF encryption is used, so common readers will prompt for the password and open the file.

Start working on your document

Choose your file and complete the operation you need with Docly.

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