Episteme (OSS)

Episteme Reader is an offline-first, privacy-focused document and e-book reader that supports PDF, EPUB, MOBI, AZW3, Markdown, HTML, and plain text.

Features

Supported Formats

- Documents: PDF - E-books: EPUB, MOBI, AZW3 - Text: Markdown, TXT, HTML

PDF Features

- Viewing Modes: Vertical scroll and paginated view. - Ink Annotations: Draw directly on pages using pen, highlighter, and eraser tools. - Text Annotations: Add text notes anywhere on the page using system or custom fonts.

E-Book Features

- Parsing: Native parsing for MOBI/AZW3 via libmobi and EPUB via Jsoup. - Customization: Adjust font size, line spacing, and margins. - Custom Fonts: Support for importing user-provided font files (.ttf, .otf).

General

- Text-to-Speech (TTS): Read documents aloud using the system TTS engine. - File Management: Built-in library organization.

License

This project is licensed under the GNU Affero General Public License v3.0 (AGPL-3.0).