Flutterflow canvas drawing board — a lightweight in-app canvas for ✍️ sketching, 📝 annotating, and ✒️ signing. Draw with buttery-smooth ink, switch 🎨 colors & stroke widths, undo/redo in a tap, and export your work (including base64) for storage or upload. Optimized for touch, mouse, and stylus with crisp, high-DPI rendering on every screen.

Functionality

• ✍️ Smooth freehand ink with optional pressure/velocity smoothing

• 🖊️ Pen, 🖍️ highlighter, and 🧽 eraser tools with adjustable stroke width

• 🎨 Quick palette + HEX/RGB color picker

• ↩️↪️ Undo/redo history, 🧹 clear canvas, and partial erase

• 💾 Save/export to base64, PNG/JPEG (transparent or solid background)

• 🖼️ Optional background image/grid and 🔐 watermark overlay

• 📐 Shape tools: line, arrow, rectangle, ellipse (fill/outline toggle)

• 🔤 Text tool with font size, weight, and color

• 🏷️ Image stickers/stamps with drag, resize, rotate

• 🔍 Pan/zoom, fit-to-screen; razor-sharp high-DPI rendering

• 🧱 Multi-layer drawing with bring-to-front/send-to-back

• 💡 Autosave drafts and restore on reopen

• ⌨️ Keyboard shortcuts (web) & 📳 haptics (mobile)

• 🎛️ Theming: light/dark UI, radius, shadows, toolbar position

• ⚡ Callbacks: onStart, onChange, onSave, onClear, onError

• ♿ Accessible controls, large hit targets, RTL/localization-ready

Use cases

• ✒️ Signature capture for forms, deliveries, approvals

• 🧑‍🏫 Whiteboard sketches for education, meetings, support

• 🖊️ Annotate screenshots, photos, PDFs in-app

• 🧩 UX/UI feedback markups for design review

• 🧠 Doodle notes, mind maps, quick idea boards

• 🛠️ Field service reports with on-site markup + signature

• 🛍️ E-commerce returns/confirmations

• 🚀 Onboarding tutorials and explainer drawings

• 👧🧒 Kids’ drawing/learning apps

• 🩺 Inspection/medical diagrams with layered annotations

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