I am also gettting the same issue. seems there is bug in PDFKit. have you filed any bug?
Pease let me know if you found anyting.
Thanks in advance
I am getting this same issue.
It seems apple still haven't fix the bug in PDFkit.
Please let me know if anyone found any workaround.
Thanks in advance.
I have also encoutered this problem. It seems fine when zooming without adding any annotation, but when there are some annotations, the memory will peak to 2GB and the app will crush.