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Google MediaPipe Hands • 3D In-Air Tracking • 100% Local
Signature by Gestures in the Air
Write your signature or initials in the air using the tip of your index finger in front of the webcam. Artificial intelligence smoothes your movements and exports a transparent, high-resolution signature ready to paste into any PDF.
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Your camera is processed exclusively on your device
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Pinch gesture (thumb + index finger) or extended index finger
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Bezier curves with anti-aliasing and transparent background
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Ready to sign on air?
Activate your webcam to allow the AI to track your hand and interpret POUND signs.
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1. Modo Caneta no Ar
Point only your index finger to draw continuously. Close your hand to pause the stroke.
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2. Gesto de Pinça (Alternativo)
Bring your thumb and index finger together to start scratching. Spread your fingers apart to lift the pen.
Tinta:
Espessura:
4
Modo:
Show your hand to the camera
Traços: 0
🔍 Prévia com Fundo Transparente:
Ready to be applied to the PDF
Submit your entry on air to see the results here...
Tips for making a perfect air signature:
1. Distância ideal
Stand about 50 to 80 cm from the camera, with front lighting so that the contours of your fingers are clear.
2. Movimentos fluidos
Write as if there is an imaginary glass slate in front of you. The algorithm applies continuous smoothing.
3. Transparência automática
When saving, the image is cropped perfectly around your heading, eliminating empty spaces to fit the PDF line.