PDF Reader Pro supports various annotation tools. If you want to delete the annotation such as Highlight, Underline, Strikeout, Freehand, Text Box, Stamps, Signatures and etc, just do as follow:
1. Quit the annotation mode and click on the annotation directly, Context Menu will pop up;
2. Then choose Delete to remove the annotation.
3. If you want to remove all annotations, you can tap More icon and choose Remove All Annotations.