I have a square. I know I can scale, rotate and skew. But can I move each corner without moving the others? I tried Path > Convert to Path, but it does not work. Any other way?
Moving one corner without moving the others will convert the square into a four-sided polygon with four angles which is called a quadrilateral.
Click the second button from the top on the vertical toolbar on the left side to Edit paths by nodes. This button is marked by a black arrow in the screenshot.
Click the button marked by the mouse cursor in the screenshot to Convert selected object's stroke to paths.
Select any one of the square's four nodes and drag the node in the direction of inside the square to create a quadrilateral of the required shape. The selected node can be dragged either inside or outside of the boundary of the original square.