Add Shape
Draw rectangles, circles, or lines on a PDF — for diagram annotation, callouts, or visual emphasis.
1. Upload your file
How does the Add Shape work?
Draw rectangles, circles, and lines on a PDF for diagram annotation, callouts, or visual emphasis. Each shape is prefixed with its kind: "rect: page, x, y, w, h" / "circle: page, cx, cy, radius" / "line: page, x1, y1, x2, y2". Optional fill renders shapes semi-transparently — useful for "circle this region" callouts. Lines are always single-stroke.
🔒 Security & Privacy
All processing happens on your device. Your files never leave your browser, never touch our servers, and are not stored anywhere. Close the tab and the file is gone.
📱 Use it on any device
Works in any modern browser — Mac, Windows, Linux, iPhone, Android, and tablets. No installation, no app to download. Just open the page and start.
⚡ Quick & easy
Drag, drop, click. Most files process in seconds, not minutes. No watermarks added to your output, no per-day limits, and the tool always shows the result before asking you to download.
🎁 Always free, no signup
Free to use, every time. No account creation, no email required, no “trial” that converts to a paid plan. We make money from ads so you don’t have to pay.