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Free forever · No sign-up · Runs in your browser
The fastest,
smoothest way to
annotate PDF files.
Highlight, draw, sign, comment and reshape any document — all client-side. Nothing ever leaves your device. Zero backend. 100% privacy.
Every tool you need
A full annotation toolkit, one keystroke away.
Add Text
Highlight
Freehand Draw
Shapes
Sticky Notes
Signatures
Move & Resize
Undo / Redo
Smart features, real speed
Smart Highlight
Highlights snap to the text baseline for clean, precise strokes every time.
Annotation Layers
Toggle highlights, notes, shapes and signatures independently as separate layers.
History Timeline
Jump back through your last steps and restore any earlier version instantly.
Scanned & Form PDFs
Annotate scanned pages and detect form areas so your marks never overlap fields.
GPU-Fast Rendering
Lazy rendering and canvas batching keep even huge PDFs buttery smooth.
100% Private
Everything runs in your browser. No uploads, no servers, no tracking. Ever.
Your documents never leave your
device.
No accounts, no uploads, no cloud. Auto-save keeps a private copy in your browser so you can pick up right where you left off.
