I am building a Django web application. I am referring to InvoiceNinja
application for invoice creation which shows the preview of the invoice as an embed object.
As I change any field while creating the invoice, the pdf preview updates automatically. I am not sure how this done(referred to the attached document).
I don't think, they are creating a PDF document(refer to the screenshot). Any idea as to how to do it?
Any useful pointers would be really helpful.