The Copy document as HTML plugin allows you to effortlessly copy your Obsidian documents into HTML format, making it easy to paste them into other applications like Gmail. With this plugin, you can choose whether to copy the entire document or just the selected text, and even customize the styling of the output. The plugin also supports various media types, including images, diagrams, and plantuml, ensuring that your copied content looks great in different formats. Whether you need to share documents with others or use them for personal notes, this plugin provides a convenient way to convert your Obsidian content into HTML format.