[Paint.net to a database]

For years I've been using paint.net to create an image which i then give to a developer. Until now they liked it, I get what I want, there happy I'm happy and Bingo! 

 

Now that I am retired and I dont have the staff that I use too, nor the respect, and definitely not the speed nor the low price, I cant help thinking to myself, 'Welcome to the Real World' But I do wonder is there a way of adding fields to my .png and saving them to a database.   I've added a typical design of design below if someone can screen record how to do it I'd be so grateful