Hello guys, i have huge pdf files to read, like 600 mb up, and i would like to know if i can open this file in iBooks and GoodReader without duplicate it on iPad. When I add the file to library it stay available to iBooks, but if I want to open it with GoodReader I have to syncronize it again (the file duplicate on iPad, right?) in GoodReader. There is a way to make this file available for both apps? Please, help. Thanks.