Obsidian eReader is a modern EPUB and PDF reader designed to make reading on Windows comfortable, organized, and distraction-free. \n\nNo ads, no online connection required, and complete privacy.\n\nBuild a personal digital library from the books and documents stored on your computer. Obsidian eReader keeps recently added titles, favourites, reading lists, and custom collections easy to access\u2014all within a clean desktop interface.\n\nPersonalize every reading session with flexible appearance controls. Choose from Light, Sepia, Dark, and Black themes, select your preferred font, adjust text size, and fine-tune line, word, and letter spacing. Your reading progress is saved automatically, allowing you to close a book and return to where you left off.\n\nEPUB tools include:\n\n\u2022 Custom fonts, text sizes, and spacing \n\u2022 Light, Sepia, Dark, and Black reading themes \n\u2022 Bookmarks for saving important passages and locations \n\u2022 Flexible page layouts and distraction-free fullscreen reading \n\u2022 Automatic reading-progress tracking \n\nPDF tools include:\n\n\u2022 Clear, responsive PDF rendering \n\u2022 Zoom and page navigation controls \n\u2022 Continuous scrolling or page-by-page reading \n\u2022 Multiple viewing themes \n\u2022 Saved reading progress \n\nKeep your library organized with favourites, reading lists, custom lists, editable book information, and optional folder synchronization. Folder syncing can automatically discover supported books and keep your library current as files are added or removed.\n\nObsidian eReader is built for readers who want the convenience of a dedicated ebook library without giving up control over their local files. Whether you are reading novels, reference books, study materials, or PDF documents, the app provides a focused and adaptable reading experience.\n\nSupported formats:\n\n\u2022 EPUB \n\u2022 PDF \n\nBring your books together and make reading on Windows feel like your own.