See attached example program. Run the app on Android:
1. Add some annotations on a few of the pages.
2. Select Add Stamp to add a stamp annotation to the current page.
3. Select Export to export (annotations will be saved to a variable and cleared from document)
4. Select Import to import the saved annotations
Result => all but the stamp annotation are imported
Regards,
Arthur
Attachment:
SfPdfViewerAnnotation_a110ee77.zip