Solidworks Viewer
EDrawings is the solidworks viewer provided free from solidworks website. The immediate advantage of this is that your customers can view your solidworks files without needing to buy the software. This is can be very helpful in winning the customer over to your design. If they have the ability to manipulate, redline and discuss the pro"s and cons of your design its more likely its acceptance can speeded up and your design intent communicated more clearly.
