PDFpen allows you to Undo edits made to your document.
To undo a change, go to Edit > Undo (Command+Z).
Note: Undo is no longer possible:
- After you Save.
- After you switch between Page View and Facing Pages view. (Page Layouts and Views)
- After changing pages when not in Continuous view mode. Continuous view is the default and can be reached by choosing View > Continuous.
To redo a change you've undone, go to Edit > Redo (Command+Shift+Z).