linesmART is the fastest and easiest way to turn your photo into a beautiful line art rendering. simply load a photo and let linesmART do the rest.
supports a wide variety of input formats. from pdf, jpg, tiff, to png. exports a png with alpha channel at the input resolution.
this app is free and very powerful. the output image is exactly the same size and resolution as your input image. the canvas is a preview ! all multi-touch transformations will not render in the output image as they only effect the preview. this is so that you can use images of a much higher resolution than your screen.
please comment if you use it.