# Extract Center Line

The Extract Center Line command converts selected brush strokes into pencil lines.

When you convert brush strokes into pencil lines, you reduce the number of points in the stroke, which results in a smaller file size for your final animation.

You must convert brush strokes to pencil lines before you fill shapes with color.

Because the paint fill is a shape itself, converting it to a center line will produce unintended effects.

To activate this command:

- Select Tools > Extract Center Line.

See Also
Optimizing Drawing Objects for the Web
Converting Brush Strokes to Pencil Lines