Springer and the sword of VPN Many universities own licenses to get access to the content of scientific oriented publishers. Using a VPN-tunnel every enrolled student every student has the possibility to explore this content online. Sometimes you’ll find whole books online you would like to save locally maybe. This donwload isn’t that easy as each book is separated into chapters which needs to be downloaded seperately and merged by zusing some exterior program like pdfsam. It is not unlikely to own a whole bunch of pdfs without any order.