The Image in Editor plugin allows you to view images, PDF files, iframes, transclusions, and Excalidraw drawings directly within the Obsidian editor without having to switch to preview mode. You can resize images using alt-text options and support various formats such as Markdown and Wikilinks. The plugin also includes features like invert color mode, image sizing, and rendering of local files. Additionally, you can render PDF files, iframes, and MSG/EMail files from Outlook directly in the editor. With this plugin, you have more control over how your images appear in your Obsidian notes, making it easier to create visually appealing content.