Hi Ravindra,
You can use Javascript to achieve feature. Add a new class to your root element which you want generate as image (Example, add new class to your data view or a container) and update the following reference code based on your new class name. Please refer this https://www.geeksforgeeks.org/how-to-convert-an-html-element-or-document-into-image/
Thanks!
You can use this widget so that people can sign: https://appstore.home.mendix.com/link/app/107984/Mendix/Signature
And you can use images in document templates. And then use those templates to generate a pdf for instance.
Regards,
Ronald
[EDIT]
You need some code for this. You might want to use https://www.npmjs.com/package/html-to-image It will take a screenshot and inmediately download this.
Hi Ravindra
You can try to generate a PDF and download it as soon as he is generated? It is not a image but it “cannot” be edited.
https://docs.mendix.com/refguide/generate-document