[mz5005]

i have converted a pdf to Epub. looks quite good. on my mac i can use hightlighting and notes in the Epub, but in android it doesnt work. because it is a thick business book i need for reference it is quite annoying.
is there something I can do reg. the conversion (e. g. make a second conversion using other settings) or is this a Google reader issue?
important remark is that the original pdf is locked and can't be changed.
any help greatly appreciated!