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PDF Toolkit

Flatten PDF

Flatten form fields and annotations so they can no longer be edited.

Runs in your browser Free · No sign-up

or drop file here

PDF · up to 50 MB

Process:

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

How to use Flatten 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 "Flatten PDF".

  3. 3

    Download the result

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

Frequently asked questions

Is Flatten PDF free?

Yes. Flatten 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.

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