I had this issue and i made a work around to resolve it. You need to open the document first with apple book and do any marking then save the file. You will be able to see annotation and marking when you import the file again in acrobat read on your iPad
I had this issue and i made a work around to resolve it. You need to open the document first with apple book and do any marking then save the file. You will be able to see annotation and marking when you import the file again in acrobat read on your iPad