Edit Tab
On the Edit tab, you can do actions such as undo, redo, delete actions, or access the settings
and enable or disable the ruler.

These functions are available:
- Actions
-
UndoReverse the most recent actions applied to the active PDF.
RedoReverse the last Undo action. This command is used only after the Undo command.
- Note:
- You can undo or redo multiple action rules, but all actions are reversed in the order they are listed.
- Objects
-
DeleteRemove selected objects.
- Settings
- Application Settings
Lets you access the settings.
- Show Ruler

Use this functionality, located at the margins of the workspace view, to help you position document elements or quickly read the position and extent of current selected object.
- Application Settings