How do I change stroke settings in Illustrator?

Access the Illustrator Stroke panel by clicking the Stroke hyperlink in the Control panel. In the Stroke panel, you can choose to change the Width height by clicking and selecting a preset width from the Width drop-down menu, or you can type in a value.

How do I reduce stroke in Illustrator?

Strokes, That Is. In Illustrator, when you draw an object, apply a stroke, then scale that object up or down, you can control whether or not the stroke size gets scaled too, or stays the same. The way you control this feature is from the “Transform” palette (Window > Transform).