PhotoToSketch is a useful tool to convert photo into sketch. This simple tool is easy to use. Just select your photo and follow easy steps. Here you have two options available. One is color sketch and another is pencil sketch. Choose option depend on you requirements. If you want image look like pencil drawing click on Pencil Sketch button. Also if you want to change strength of effect, long click on that button. You can adjust effect strength from seekbar. After applying effect click on Save button to save sketch.