The Vitepress Publisher plugin integrates Vitepress functionality into Obsidian, enabling users to preview and compile Markdown files for web publication. Users can configure directories and file paths for their Vitepress setup, making it simple to organize and publish content. The plugin includes features like a sidebar button to manage Vitepress preview sessions and a top bar button to copy and preview specific documents. Advanced settings allow for customization of the publishing workflow, while commands such as 'vitepress build' and 'vitepress preview' streamline the process of building and reviewing sites.