The Obsidian plugin allows users to create and manage PDF annotations directly within their Obsidian notes. With this plugin, you can highlight text, add comments, and create bookmarks in your PDFs. The plugin also supports linking Mind Map nodes to specific annotations, making it easy to navigate between related ideas. Additionally, the plugin includes features such as table layouts for rich Mind Maps, improved annotation copying, and increased speed when opening Mind Maps. Overall, this plugin is a powerful tool for researchers, students, and professionals who work with PDFs and need to annotate and organize their notes.