A machine shop receives a SLDASM from a client. The shop foreman opens it in the free viewer, clicks "Section View" to inspect internal holes, adds a red arrow annotation saying "Deburr this edge", and shares a link back to the client. The client opens the link on their phone, sees the exact annotation, and approves the change – all without installing SolidWorks.
Use built-in tools to add comments and markups directly on the 3D model. solidworks free viewer