Markdown Preview

View > Preview (or the Toggle Preview shortcut) renders the current document the way it will actually look once exported — fonts, sizes, justification, page proportions, and drop cap all come from the currently selected typesetting style, the same one the Export dialog uses. A Style picker at the top of the Preview tab lets you switch styles live and see the change immediately; picking a style there updates the project’s export style too, so Preview and the Export dialog always agree on what you’ll get switching one from the other.

Headings, quotes, code blocks, lists, and tables still render with sensible on-screen formatting, but no longer in the old color-coded “dev preview” palette — book export is effectively monochrome ink on a page, so Preview reads that way too.

Images work two ways:

• Standard Markdown: ![alt](path/to/image.png)
• Obsidian-style embeds: ![[image.png]]

Relative image paths resolve against the open document’s own folder, and must stay inside the project (a path that tries to escape the project root — via .. or a symlink — is refused). Remote http(s):// images are never fetched.

Typewriter Quotes

File > Settings > Editor has a “Typewriter quotes in Preview and export” checkbox, off by default. When it’s on, straight typewriter punctuation is rewritten wherever markdown gets rendered from — the Preview pane here, and every Export format:

Your .md file on disk is never touched — the source text you type stays exactly as typed, straight quotes and all. Only the rendered view of it (Preview, or a compiled DOCX/EPUB/PDF) changes, so switching the setting off later shows your original punctuation again, nothing was lost. Quote direction (opening vs. closing) is inferred from context, the same simple heuristic most word processors use — it isn’t guaranteed correct in every edge case (e.g. deeply nested quotes), but handles ordinary dialogue and contractions correctly.