Redact plugin

The redact plugin helps users redact sensitive information in images.

It currently has no specific UI properties. Please make sure to set the imageScrambler property to either a custom blurring function or to the return value of createDefaultImageScrambler().

Applying redaction to the source image

By default redactions are only applied to the output image. If we're also uploading the source image we need to redact it as well, or censored information would still arrive on our server.

We can use the preprocessImageSource and preprocessImageState hooks to achieve this.

    src: './my-image.jpeg',

    // our custom writer logic
    imageWriter: {
        // apply redaction to source image
        preprocessImageSource: async (src, options, onprogress, state) => {
            const { dest } = await processDefaultImage(src, {
                imageRedaction: [...state.redaction],
            return dest;

        // remove redaction from state
        preprocessImageState: (imageState) => {
            imageState.redaction = [];
            return imageState;