In our organization, we have found multiple use cases where users would like to submit a form and a data point we would want to capture from the form user would be a free style image either on a blank canvas OR the ability to upload an image and have the user "mark up" the image to answer a question or provide info.
Examples:
- Car rental form and uploading a image for users to draw existing damage
- Lane closure/ traffic control form where users can draw/ markup street/ lane closures
- Freestyle drawing on blank canvas for general use like signatures, drawing shapes, etc.