a book designer
inside obsidian.
Each chapter is a Markdown note. One book note stores the book details and the design. Preview the typeset book and export it to PDF, all without leaving Obsidian.


Chapters are notes
The book note lists the chapters in reading order, as links. Its properties are the title, the author, the other metadata and the design.


Write, then format
Write chapters in Markdown. Switch the pane to the preview to see the typeset book, open at the page you are writing.


Design in the panel
The design panel has a control for the trim size, the margins, the type, the headings and more. The preview updates with each change. Your own CSS can take precedence, and overrides are shown in the panel.


Advanced CSS styling
Orca styles the book with CSS. The design panel writes CSS for you, and you can add your own rules by writing CSS directly. Use inspect mode to examine elements, see the CSS that styles it, and which rules take effect.


Export for reading
Export PDFs and ePub files for distribution. Preflight shows warnings and errors before you export.


On a phone and a tablet
Orca is also compatible on phones and tablets. The interface adapts for touch and smaller screens.




Turn the pages
Twenty Thousand Leagues Under the Sea, set and exported with Orca.

















