Status bar
The status bar provides the state of the Insert (OVR), Num Lock (NUM) and Caps Lock (CAP) keys. It also tells you if you are in Mark Mode or not. When Mark Mode is not enabled, the text is greyed out.
The state of Document Review, the number of documents, the number of selected documents (for multiple-selection), pages in the currently selected document, and the number of problems are also displayed.