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Celsys is a total solution vendor in the e-book distribution industry, providing the Clip Studio READER e-book viewer, server management services, as well as website development and content creation support.


2022.01.25 The case study with Fujiko-Pro Co., Ltd. - DORAEMON Channel was released
2021.04.09 Clip Studio Reader Lab released, the culmination of e-book research and development Technology for detecting panels and character faces in manga using AI unveiled
2020.07.03 Celsys' e-book viewer “Clip Studio Reader” newly updated Improved customization to meet varied needs
2020.07.03 Celsys' e-book viewer “Clip Studio Reader” now supports image compression File sizes reduced by up to 70% for distributing high-quality content at a lower cost


CLIP STUDIO READER is an eBook viewer that browses content with an optimal expression matching the viewing environment and the characteristics of the work such as vertical scrolling, panel by panel viewing and full-screen pages. It supports distribution to various devices such as smartphones, tablets, and Pcs, which allows providers to offer a wide range of services. Our service has been adopted to over 1200 services worldwide.


"eBook Authoring Tool"

We provide eBook authoring tools for customers who produce eBook content. We handle the whole production process from scanning to authoring, including material checks and the generation of distribution data. We also provide unique content viewing options such as vertical scrolling, panel by panel viewing and full-screen pages (ePUB and Kindle), etc.

Contact us
(Please contact us for any further inquiries you might have about eBooks, their distribution, estimates, alliance, etc.)