How to Smooth Out Jagged Lines in a Bitmap Image

Now drag the bottom left dot to the right, keeping it at the bottom edge of the graph. As you drag, notice how the lines in the image become thicker as you drag to the right. If you go too far to the right, the jagged appearance will return. So stop at a point where the lines are smooth, but no longer blurry.

Take some time to experiment with the curve and see how it changes your image.