Image to a Pencil Drawing in Fireworks MX 2004 This tutorial demonstrates how to convert an image to a pencil drawing. Step 1 Paste an image on your canvas. Step 2 With the image selected click on Filters>Others>Find Edges. The image is darkened with the lines highlighted. Step 3 Go to the Properties window below the screen and click on Blend Mode and select Difference. Step 4 Click on Filters>Sharpen>Sharpen. The lines appear a little darker.