What do you think is the algorithm of the wordswag.co program?

Question

Objective-C

Perhaps someone faced a similar task, there is such a program https://itunes.apple.com/ru/app/word-swag-cool-typ... ( http://wordswag.co), you need something similar in your own project . An algorithm for constructing an image is needed... The result parameters are clear, but the mechanism of the generator's operation is not obvious.
If you have ideas or ready-made solutions, please help.

Answer 1

Draw the original image on the canvas, and draw text and other artifacts on top of it. Then you save the entire canvas to Bitmap, and then through the compressor and to a file, or somewhere else. What's the catch?

Answer 2

It’s just clear, it’s not clear how to work with text, pictures, placeholders exactly within the framework of the poster, the mechanism for entering text and generating the environment is always different, it is generated differently for different text, it is also regenerated differently for the same text, this is the main question.