Photo markup: arrows, callouts and numbered steps on any picture
An online tool for marking up a picture you already have — a photo, a screenshot or the first page of a PDF: arrows, callouts with text, numbered steps, a magnifier, a ruler with a real scale, and blur for faces or data. Every mark stays a separate object until you save, so it can be moved, recoloured or deleted.
Drop a file, paste with Ctrl+V or open the sample.
Arrow, callout, steps, magnifier, ruler, hide — the hint on the right explains each.
Draw on the picture. Ctrl+Z undoes; any mark can be moved.
One click downloads a PNG; JPG, SVG, GIF and copy sit next to it.
Circle it, label it, number it — right in the browser
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This image is large ({w}×{h}). Downscale to 4K for smoother editing?
Keyboard shortcuts
Features
How do I number the steps without renumbering them by hand?
Click the places in the order you want them read and the badges number themselves — 1, 2, 3 appear as you go. That sounds like a small convenience until you insert a step in the middle of a finished instruction: with hand-drawn numbers that means editing every badge after it, which is the point at which most people give up and leave the sequence wrong. Here the numbering is a property of the order, not of the label, so inserting or deleting a step renumbers the rest for you.
Where does the ruler get centimetres from?
From your calibration. Press "Set scale", drag along something whose size you know — a doorway, an A4 sheet, a coin — and type its length. Every later measurement on that picture is then reported in the same units. Without calibration the ruler honestly shows pixels.
How do I cover faces and personal data?
Choose Hide and drag over the area: the switch selects blur, pixels or a solid block. "Find faces" loads a compact detection model and runs it in the browser, marking faces so they can all be covered at once. A solid block leaves no trace of the original pixels, which is what document and card numbers need.
Can I mark up the first page of a PDF?
Yes — a PDF can be opened here directly and its first page becomes the canvas, alongside photographs and screenshots. That covers most of what people actually need to annotate: a contract clause to point at, a floor plan to measure on, a form field to circle. Everything that works on a photo works on it — callouts whose tail ties the text to an exact spot, numbered steps, the magnifier for small print, blur for anything that should not travel, and the ruler with a real scale when the page is a drawing rather than a document.
Does an Apple Pencil, S Pen or Wacom work?
Yes. The pen and highlighter read pen pressure through Pointer Events, so the line thickens the way it does on paper. On a phone or tablet the tool strip sits at the bottom under your thumb, with the active tool’s settings directly above it.
How many pictures can I mark up in a day?
The counter counts pictures, not presses: however many times you save the same photo — as PNG, then JPG, then once more after fixing a typo — it stays one picture. What is left today is shown under the editor, and Premium raises the daily allowance.
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