I want to create a meme generator on my own , by fetching images from api. I know imgflip allows you to caption meme using api. But, i want to do it on my own. I can write top and bottom text in an image using canvas , but all the meme templates do not go with same top bottom format.

So , I want to create a same draggable and resizable box similar like the image below.

imgflip caption meme