Best PDF Search Engines to Find Books and Documents

Digital advancement has made eBooks and online documents an integral part of our lives. From education to legal documents, you can find everything online in one place. But how to do that exactly? Well, plenty of PDF search engines do the work for you. We have handpicked some of the best PDF search engines to help you find the ebooks and PDF documents you’ve been looking for. So without further delay, let’s check them out one by one.

Best PDF Search Engines

Best PDF Search Engines to Find Books and Documents

Here are the top five PDF search engines that will help you find your desired book and document:

  1. Internet Archive
  2. Google Scholar
  3. ManyBooks
  4. PDF Drive
  5. ResearchGate

Let’s take a sneak peek at all of them!

1] Internet Archive

Internet Archive is home to over 20,000,000 free books and texts. Thus, you can get any book on the Internet Archive. It also has over 2.3 million eBooks that are also free to access.

Internet Archive PDF Search Engine

Features

  • Books in DAISY form for the disabled
  • Free sign-up and access
  • Easy to fetch books with Filter Sort (including the year of upload, topic, collection, creator, and language)
  • Vast database of 4 million digital copies of books
  • Massive collection of 734 billion documents
  • Rarest collection of evergreen archives

Pros

  • It has a classic yet comprehensive collection of books
  • Regional texts available
  • Open-source library

Cons

  • The account data backup option is unavailable
  • The latest books and documents are often unavailable

Check it out

2] Google Scholar

Google Scholar is a search engine for academic literature. You can use it for searching any scholarly literature. Its vast library includes books, documents, articles, court verdicts, academic authors’ books, repositories, and a thesis.

Google Scholar PDF Search Engine

Features

  • Illustrates comprehensive documents on the rarest topics
  • Sort according to the author, publisher, and citations
  • Latest research modules
  • Notifies about Citations using a Public profile
  • Easy to search as it uses Stemming technology
  • Faster documents retrieval
  • Ideal for scientific search documents
  • Allows you to save documents to My Library
  • Scholar Metrics lets you access Top Publications
  • Search recommendations and Related Searches help to find related topics

Pros

  • An extensive database including the most dated documents to the newest ones
  • Documents from the most popular authors and universities also
  • Mobile responsive and faster loading time

Cons

  • Fewer sort filters
  • Not Comprehensive

Check it out

3] ManyBooks

ManyBooks has a free eBook library that consists of 50,000 books. It is one of the oldest and most popular PDF search engines. You can find a lot of classic books on ManyBooks.

ManyBooks PDF Search Engine

Features

  • Adds a new book to their library every day
  • Several book genres ranging from romance, adventure, mystery, and biography to horror and lots more
  • Newsletter subscription for daily updates
  • An emerging platform for self-publishing authors hence can explore the latest and unique  books
  • Let you share book reviews for improvements

Pros

  • Variety of books
  • Easy to download
  • Minimalistic interface
  • Mobile optimized website

Cons

  • Email subscriptions are annoying
  • Does not have educational books and PDF documents

Check it out

4] PDF Drive

PDF Drive is an ever-increasing collection of books and documents in PDF documents. It readily displays the number of files uploaded.

PDF Drive PDF Search Engine

Features

  • It has a comprehensive collection of magazines, articles, and storybooks
  • Ability to search by categories and different genres
  • A remarkable site that has fictional topics like horror, art, and non-fictional like Business, fitness, and biography
  • Quick preview of the best books in the editor’s pick section
  • Redirects you to the book website for easy download and more information
  • It lets you add books to your wishlist using the My List feature

Pros

  • Free accounts give you complimentary 100 MB of its Cloud Drive storage
  • Displays book statistics
  • No limit over book downloads

Cons

  • Need a premium account for ad-free interference
  • Cluttered interface

Check it out

5] ResearchGate 

ResearchGate is a PDF search engine, especially for researchers and scientists. Be it the latest research papers or related books, you will find them all here.

  • ResearchGate PDF Search Engine

Features

  • It has a collection of 135 million publications.
  • Had communities for like-minded professionals in subjects like medicine, computer science, chemistry, and more
  • Interact with communities to discover documents better
  • Notifies the publishers about who’s accessing or citing the research papers

Pros

  • Recommended for researchers
  • Increases Discoverability of your work
  • Easy to access books from the top universities

Cons

  • Slow loading time
  • Plenty of ads in the free account

Check it out

Conclusion

So this ends our list of the top 5 PDF search engines. We have handpicked all these search engines. All of the above-listed search engines are safe and easy to use. If you are looking for a PDF search engine specifically for science-related books, ResearchGate must be on your list.

For a wide variety of books with downloading options and an ad-free experience, check out PDF Drive. Also, comment below what PDF search engine you found the best.

A passionate gadget freak, professional basketball player, and mountaineer. I started my internet journey in 2014 and love experimenting with Windows, Gadgets, Smartphones, and Drones. I am a pet enthusiast and volunteer for an NGO to rescue dogs.

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