Create dotted or dashed lines

Select the object in your artwork, and then select Stroke in panels.

Select Window > Stroke to open the Stroke panel.

Select Dashed Line checkbox to activate dash settings.

To control how dashes appear on corners and path ends, select one of the following:

• Preserve exact dash and gap lengths: This retains the original dash and gap lengths without aligning them to corners or path ends.
• Align dashes to corners and path ends, adjusting lengths to fit: This makes the dashes at the corners and ends of the paths consistent and predictable.

Specify a dash sequence by entering values for the lengths of dashes and the gap between them.