Students and educators often need to annotate PDFs with handwritten notes, but existing tools are clunky and not integrated well with browsers. A browser extension could simplify this process.
Build a lightweight extension that allows users to write directly on PDFs viewed in the browser. Include features like different pen colors, erasers, and easy saving of annotated files.
Students and educators would pay for a tool that enhances their note-taking experience. Offer a freemium model with basic features free and advanced features behind a paywall.
The smallest version could start with basic note-taking functionality and a simple save feature. Add more tools and customization options based on user feedback.
The biggest risk is competition from existing PDF annotation tools, but focusing on browser integration could set it apart.