"DABONDA" is a multi-board solution that utilizes the technology of smart viewer "Ara Reader,“ supporting EPUB 3.0 and various document file formats. Institutions and businesses that need to share various documents for news and announcements can greatly benefit from implementing DABONDA. Users can download attached files and view them in real-time with a single click in the browser, eliminating the need to install separate viewers for each document format. DABONDA allows users to view Word, Excel, PPT, PDF, and HWP files all in one place. It also supports the rich media features of EPUB 3.0, enabling real-time viewing of educational and promotional materials that include videos, animations, audio, and other multimedia elements.