The Handwritten Notes plugin integrates stylus-based handwritten note-taking seamlessly into Obsidian. It uses PDF-based storage for long-term compatibility, allowing users to create, annotate, and reference handwritten notes within their vaults. The plugin offers features such as customizable paper templates and integration with Markdown files. It requires external PDF editors for editing and supports various platforms with recommended tools. Following the 'File Over App' philosophy, this plugin ensures your notes are portable, durable, and accessible across devices and time.