The 2D viewer offers a lot of annotation tools.
Annotation Creation Tools
The main application toolbar has all the available annotations tools. The main toolbar displays at the bottom of the screen on mobile devices. Some of the annotations are listed in dropdown menus which allow you to select the Annotation tool you want to use to make Annotations.
Editing Toolbar
With the Annotation Editing Toolbar you can edit and manage the Annotation properties. When an Annotation is selected, the Editing Toolbar will open below the selected Annotation.
Exit the Annotation Mode
Annotation mode is continuous, and will stay active even after an annotation has been placed. As long as the tool is active, the annotation button is highlighted in blue. Select another tool in the toolbar to deactivate the annotation tool.
Duplicate Annotations
Annotations can be duplicated in the 2D viewer.