SpeedyNote is a fast, open-source note-taking application designed for
stylus users who need iPad-quality annotation on budget hardware. Built
with native C++ and Qt, it delivers 360Hz stylus input on hardware as
modest as an Intel Celeron N4000 at 1.1GHz — with no Electron bloat.

Annotate PDFs with pressure-sensitive inking tools including pen, marker,
and highlighter, all rendered as vector strokes that zoom infinitely
without pixelation. Organize your work with multi-layer editing, paged
notebooks, or infinite edgeless canvases with lazy-loading tiles.

Key features include:

• Instant PDF loading with clickable internal links and outline navigation
• Multi-layer editing with add, delete, reorder, and merge operations
• Touch gestures: two-finger pan, pinch-to-zoom, and palm rejection
• Cross-platform note sharing via .snbx notebook packages
• Powerful command-line interface for batch PDF export and notebook management
• Multi-tab editing to work on multiple documents simultaneously
• Auto-save so you never lose work