im trying to converte pdf file with bookdesigner when i loaded the ebook the book main window stay empty and i cant make the conversatin any one know what cuse this provblem ?
what should i do ?
thanks

The problem is that book designer does not work well with PDF that are graphic heavy. It doesn't keep the graphics. So unless the PDF doesn't have graphics you need and all you need is just text, you'll be ok. otherwise, forget it.