Sometimes polylines will have many vertices and that ultimately leads to bigger drawing size. When the drawing is having many such polylines, normally working on such drawings slows down. Reduce polyline weight lisp is developed to address this problem. You can create polyline having fewer vertices by specifying the distance at which you need vertices. This lisp command will find the point on the polyline at a multiple of specified distance and will create a new polyline, thereby reducing the number of vertices. This list is the solution to reduce the number of vertices without deviating much from the original path of the polyline. This macro is not suitable for the lines having lesser vertices or polylines having points at larger distances.