Docotic.Pdf library can be used to add text annotations (sticky notes) to documents.
Seven predefined icons can be used for text annotations. Any sticky note can contain Unicode text. You can specify any color
for annotations text and background.
For example, you can make the PDF viewer application execute
your code when a document is opened or when a button in a PDF is clicked.
You can create different types of actions and attach them to document pages and controls.
There is enough to choose from: hide,
reset and submit form,
import data, go to,