Use the Compare feature to identify the differences between two versions of a PDF document.
Select and right-click the file, then choose Compare.
Select the versions you want to compare.
Select Text comparison to view a list of the differences in the right-hand column. You can click each individual change in the column, and it will be displayed in the preview on the left.
Select Visual comparison to view the differences visually. The two documents will be overlaid, and the differences will be highlighted in red on the drawing.
