Creating and removing PDFAnnotation works perfectly fine on iOS 11.2, but have issues on lower iOS versions (don't know about 11.1, but test device has 11.0.5 installed).
PDFView after adding annotation to the page:
PDFView after removing annotation from the page:
(fine on iOS 11.2, on iOS 11.0.1 has issues)
Sample project can be found here
Maybe there is a way, how to fix this?
Thank you.