Thank you very much, and I appreciate that. But for now, I don’t understand how to draw an image of signature and then save it.
However, I will tell you about my target clearer.
the real goal is to create a report from a mobile application with a signature.
I want to draw a signature by mobile app.
** only draw step I saw your project then I found that you used HTML canvas to do a drawing.
Then I want to save a signature (from a mobile app) as an image (jpg or png) to google drive.
Then I will get the image link and put it on google sheet cell (I already know to do this step)
// every step will run automatically when I click the button on my app after I finish checking other data and draw a signature
// other step to do a report I do it finished.
// and I do not graduated from faculty about computer (I graduated from mechanical engineering) then I sure I will do not understand about computer language clearly enough. I will say sorry if I ask a stupid question. I will do with my best.