This is a great way to quickly and easily measure the key components of your drawing with ease. This allows you to click on a single point on the drawing and drag a measuring line out that tells you the length of the measurement as you drag. A new addition to the latest version of DWG Viewer is the measure tool. This is a great feature for when you have complex drawings and need a way to make your annotations stand out making it easier to read your comments. The Balloon or Ellipse tool gives you an extra way of displaying your comments on the drawing. You'll then be able to change the colors, fonts and styles to make your comments pop and stand out. With the Type tool you can quickly add comments and titles to your DWG files to communicate your suggestions to the designers. It contains many components to adjust dimensions or extract design details from 3D models to create high quality production ready drawings. FreeCAD allows you to sketch geometry constrained 2D shapes and use them as a base to build other objects. Parametric modeling allows you to easily modify your design by going back into your model history and changing its parameters. Select the version that is right for your operating system.