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Open most ebook formats
KooBits can open popular ebook formats such as PDF and our own interactive format.
Download now to enjoy an all-new ebook experience!
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Shelve your ebooks
A collective shelf for your ebooks – read, organize, and manage all your ebooks in one place.
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Content extraction and annotation
Personalize your ebook with the Highlight and Stamp to mark important sections or use the Extraction tool to copy content and piecing them however you like in the scrapbook.
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Award-winning ebook software
KooBits 4.0 has been installed hundreds of thousands times worldwide since January 2011. It earned a 5-star rating from CNET, and got featured on MakeUseOf.com, etc.
KooBits 4.0 is an all-new innovative free e-book reader software that enables you to conveniently view, organize and manage all your e-books in PDF and our own interactive e-books with animation and multimedia format.
KooBits 4.0 not only has the basic functions as an universal e-book viewer and e-book manager, like organizing a library of e-book collection, highlighting in various colours, annotating with symbols or icons using the stamp feature and bookmarking, but enables interactive functions such as page flipping and game elements as well.