When you have diagrams which you would like to share with other people, they can use an installation of AgileJ StructureViews the default license (non-editing) to view those diagrams. This is the best way to view the diagrams, as even though editing functions are disabled, all other navigation and selection functions remain active - and the diagrams reflect the current state of the code.
However, if you wish to avoid the requirement that your audience have Eclipse and AgileJ StructureViews installed, it is more convenient to distribute an image of a diagram.
With the diagram you wish to produce an image of open in the diagram editor, select File-Save AgileJ StructureViews Diagram to JPEG. The Eclipse standard SaveAs dialog will appear so that you can choose a name and location for your image file.
Use a web browser to open and inspect the resulting image file.