SoftOrbits Sketch Drawer Pro will convert photos to drawings, you may have read many articles and Photoshop tutorials about these, But this software help you to do it in just a click. What you have to do is select the type of the presets, and some other settings like texture to use etc., and click run. You can even choose a part of the photo to be converted to sketch too.
What you should only take care is to choose the right presets and other settings. You can see the above image which I just used the default preset with out any additional changes in settings.
This software allows batch conversion, adding watermarks too.
From this giveaway you can get a free full version life time license of SoftOrbits Sketch Drawer Pro worth USD 79.95.