Internet Archive
This is a non-profit online website for users to grab various kinds of eBooks, audio, videos, and more. It offers books from different platforms with different formats. You can type and search for your ideal book and find whether it is available in PDF. If so, you can download it for free.
You can read good books with these websites to download books in PDF. And you can use an iOS or Android PDF reader to enjoy the books you download. What’s more, if you want to read PDF books on your computers, here is a good PDF reader which you can get by clicking the download button below. It is a one-stop solution to help you read downloaded PDFs, add annotations and comments, modify content of the eBooks, etc.
Library Genesis
Library Genesis is where you can search for millions of books and articles. In its website, most works are in PDF format while some are in ePUB. And to get the book you want, you just need to type and search for it, then click the name to go to a page with detailed information. After that, you can click its name again and hit “GET” to download the eBook.
Bookboon.com
Another free PDF website to grab eBooks and textbooks is BookBoon.com. Users can download over 50 million PDFs from the site. Meanwhile, it is currently the world’s largest online publishing company of eBooks that focuses on short and practical books, IT, business and literature for engineering, etc. Through this site, you can benefit a lot since it separates books in different categories, and you can not only download the books you want, but also find other related ones.
Free-Ebooks.net
like the above websites, this one includes more formats of books, such as PDF, ePUB, Kindle, and TXT. PDF is the most common format in this site. Users can choose several categories, like fiction, non-fiction, academic, textbooks, classics, fiction audiobooks, non-fiction audio books, and children’s books. And before downloading a book, the website allows you to preview it.
Free Computer Books
FreeComputerBooks is one of the websites for downloading free PDF books in Science. On its website, you will find categories related to computer, mathematics, and programming hanging at the upper side of the page.
When you click on the name of a book, you will see the information of this book. Scrolling down the page, you will see related categories and similar books, as well as a link to get the PDF books.
ManyBooks
As the name implies, this website has thousands of free eBooks. The books can be downloaded in PDF format, as well as other formats, like ePUB, pkg, mobi, pdb, etc., which can be used on your computer, mobile, iPod, Kindle, and many more.
Some extra pdf downloading sites
1. http://www.pdfdrive.com/
2. http://b-ok.xyz/
3. http://Audiobooks.cloud
4. libgen.io
5. Pdfdrive.net
6. Allitebooks.com
7. Bookrix.com
8. Gutenberg.org
9. Freebooks.com
3. http://Audiobooks.cloud
4. libgen.io
5. Pdfdrive.net
6. Allitebooks.com
7. Bookrix.com
8. Gutenberg.org
9. Freebooks.com