Here is a tutorial on how to turn a photo into a hand sketch drawing using the free photo editing software, GIMP. Make sure you have already backup your photo. Firstly, duplicate the layer then change its blend mode from normal to Dodge. Invert the picture's color by going to Colors>Invert command. The next step is applying the value propagate filter for two or three times until you get the desired effect of hand sketch. Let's get started! Final result. *{paddi...