a tool of saving or converting canvas to images
you can just use it like this
filename is optional, default is Date.now()
Canvas2Image.saveAsImage(canvasObj, width, height, type, fileName)
Canvas2Image.saveAsPNG(canvasObj, width, height, fileName)
Canvas2Image.saveAsJPEG(canvasObj, width, height, fileName)
Canvas2Image.saveAsGIF(canvasObj, width, height, fileName)
Canvas2Image.saveAsBMP(canvasObj, width, height, fileName)
Canvas2Image.convertToImage(canvasObj, width, height, type)
Canvas2Image.convertToPNG(canvasObj, width, height)
Canvas2Image.convertToJPEG(canvasObj, width, height)
Canvas2Image.convertToGIF(canvasObj, width, height)
Canvas2Image.convertToBMP(canvasObj, width, height)
MIT