I need a developer to create a drawing tool with the library KonvaJS integrated in a web page. First, we will implement the basic functionalities then we will more advanced functionalities according to user feedback.
For the basics:
1) it must be usable on a desktop browser with a mouse and tablet browser with a pen.
2) On the tablet, we have to be able to drag and zoom the canvas when touching it with 2 fingers.
3) The stage has to be responsive according to the place available on the page.
4) On the web page, I must be able to choose among tools like "Brush" "Size of brush", "Eraser", "Color picker", "Back" and "redo".
5) Put a background image on the stage. Draw on it. Save only the svg drawing without image. (must call [login to view URL]();) and be able to reload the svg on the stage afterwards.