Epubor is a company based in China that operates within the Business Services sector, specifically focusing on custom software and IT services. Founded in 2011, Epubor specializes in providing solutions for ebook management, conversion, and protection, as evidenced by their published content. Their document, titled "Calibre and Kindle: How to Manage, Convert, and Protect Your eBook Library," discusses the challenges Kindle users face with ebook formats and management, particularly regarding the limitations imposed by Digital Rights Management (DRM). The document emphasizes the use of Calibre, a versatile ebook management tool that supports various formats and facilitates file conversion, while also addressing the intricacies of managing a growing ebook library. Epubor's expertise is reflected in their focus on practical tips for users seeking to optimize their ebook experience, including the removal of DRM to enhance accessibility and usability of digital content. With a modest employee size and a revenue of approximately 4.3 million USD, Epubor continues to contribute to the evolving landscape of digital publishing and ebook management.