Navigate Here: Documents -> Browse Documents -> Click the Markup icon 
of a Document
You can add various types of annotations for the document under Annotate menu.
Draw Arrow: click the Draw Arrow icon 
; you can draw arrow(s) in the document. After clicking the Save button
, the arrow(s) will be added.
Draw Line: click the Draw Line icon
; you can draw line (s) in the document. After clicking the Save button, the line(s) will be added.
Draw Rectangle: click the Draw Rectangle icon
; you can draw rectangle(s) in the document. After clicking the Save button, the rectangle (s) will be added.
Draw Ellipse: click the Draw Ellipse icon
; you can draw ellipse(s) in the document. After clicking the Save button, the ellipse (s) will be added.
Text Annotation: click the Text Annotation icon 
; drag the mouse to the specific area to draw a text box, the text box will change into the edit mode, you can add some text annotations. When the annotations are done, click the Save button, the annotation will be added successfully.
Draw Freehand Line: click the Draw Freehand Line icon
; you can draw freehand line(s) in the document. After clicking the Save button, the freehand line(s) will be added.
Stamp Annotation: click the Stamp Annotation icon
, you can draw a stamp annotation.
Highlight Annotation: click the Highlight Annotation icon
, drag the mouse to select the target texts, the contents will be highlighted in yellow by default.