PDF Drive

If you are are looking to download useful, copy-right free pdf files or e-books, then this hunt is customized for you. PDF drive is a platform for searching and downloading pdf resources without having to worry about copyright issues. As at the time of writing this comment, there are over 11 million pdf files in from of e-books and educative materials on the platform. Perhaps your favourite e-book is even there!

A good platform for students and any education inclined person. No hassle, just search and download. It also has a Android app which can be downloaded here https://play.google.com/store/apps/details?id=pdfdrive.inc.asaha.pdfdrive_official&hl=en_US