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eBooks.com is a leading retailer of ebooks, with a vast range of ebooks from academic, popular and professional publishers.

KDAN PDF Reader is the top-rated PDF editor for iOS, Mac, Android, and Windows devices. Edit, view, convert, and combine your PDF files with ease.

PDF-XChange develops fast, light PDF software for viewing, converting, and editing PDF documents, with unparalleled support and service, including the Best PDF Reader - as voted by Life Hacker Readers.