xnotes

xnotes is a handwriting-first notebook for phones and tablets, built for pen and stylus. Write, sketch and annotate with pressure-sensitive, variable-width ink, and nothing you draw is ever flattened. Highlights: * Paged notes and an infinite canvas: work in real pages when you want structure, or spread out on a canvas that never runs out of room. * Pressure-sensitive ink: a custom stroke engine turns raw stylus samples into a smooth, variable-width ribbon that swells and tapers with pen pressure, so handwriting and sketches feel natural instead of like a flat marker. * Vector PDF, in and out: drop in a PDF as a page background to annotate, then export your notes back to PDF as true vector — ink and text stay crisp at any zoom instead of being flattened to pixels. * Razor-sharp deep zoom: a background renderer redraws a high-resolution viewport off the main thread, so you can zoom far in and the ink stays sharp rather than turning blocky. * Real highlighter blending: highlighters are composited live every frame with a true multiply blend, so overlapping strokes deepen like real ink instead of painting over one another. * Neon pen: a glowing pen with a bright white core and saturated, luminous edges for accents that pop off the page. * Smart PDF dark mode: invert a PDF page for comfortable night reading while leaving embedded photos and images untouched. * Nothing is ever flattened: every stroke is stored as editable vector data in the open .xnote format, so you can re-select, move, restyle or erase any mark at any time. * Stylus-aware by design: pen and finger are handled separately, so you can pan with a finger while you draw with the pen; on devices without a stylus, finger drawing turns on automatically. * Private and open: open source, no accounts, no telemetry, no network access at all. Files go through Android's Storage Access Framework, so the app needs no broad storage permission either. Also includes: * Shapes, text boxes and image insertion * Stroke and object erasers, plus box and lasso selection with move and resize * Multi-page documents with several page sizes * A backstage file area: recent notes, a built-in folder explorer and quick sharing * A side panel with page thumbnails, contents and bookmarks * Undo and redo * Pinch to zoom and a configurable pen side-button action * Customisable theme, accent colour and page defaults