Handwritten notes and PDF annotation for Android tablets, saved as plain Excalidraw files.
Strokes appear right under the pen tip and look the same after you lift it, and the same again in Excalidraw.
Import slides or papers, even hundreds of pages long. Add blank pages anywhere in between for working.
A4 in portrait or landscape. Swipe past the last page to add another. Fit the page or the width, edge to edge.
Fingers scroll and zoom while the pen draws, so your hand can rest on the screen. Hold the S Pen button to erase, or hold it still to select and paste.
Pen, fineliner, pencil, chalk and highlighter, with fine sizes and your last colors one tap away.
Keep notes in any folder, like an Obsidian vault, and sync them however you want. Paste images straight in.
Turn on Live on the tablet and anyone with the five-letter code can follow along in a browser: on a projector, on a classmate's laptop, on your phone.
They see each stroke as you draw it and follow you through the pages. They can look, not edit, and nothing is stored online.
Every note is an ordinary .excalidraw file. No account, no cloud, nothing to export.
// Lecture 3.excalidraw { "type": "excalidraw", "elements": [ { "type": "frame", "name": "Page 4", "customData": { "background": { "kind": "pdf", "file": "Lecture 3.pdf", "page": 3 } } }, { "type": "freedraw", "strokeColor": "#e03131", "points": [[0, 0], [4.2, 1.9], …], "pressures": [0.31, 0.44, …] } ], "inkcalidraw": { "pens": { … } } }