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The Syncfusion Flutter SignaturePad is a library for capturing smooth and realistic signatures. This widget allows you to save signatures as images and sync them across devices and documents that need signatures. You can use your finger, pen, or mouse on a tablet, touchscreen, etc., to draw your own signature on this SignaturePad widget.

Flutter Signature Pad overview.


The appearance of the Flutter SignaturePad is highly customizable.

Flutter Signature Pad stroke color.

Stroke color

The stroke color of the SignaturePad can easily be customized to the desired color.

Flutter Signature Pad stroke width.

Stroke width

The widget allows you to set the minimum and maximum stroke widths for the signatures.

Realistic, handwritten signature look and feel

The unique stroke rendering algorithm draws a signature based on the speed of the drawn gestures along minimum and maximum stroke thicknesses, which brings a more realistic, handwritten look and feel to the signature.

Save signature as image

Save the drawn signature as an image. This converted image can be embedded in documents, PDFs, and anything else that supports using images to denote a signature.

Flutter Signature Pad saves signatures as images.

Handle callbacks

The widget also provides callbacks that help handle the start and end of each signature stroke in the SignaturePad.


Greatness—it’s one thing to say you have it, but it means more when others recognize it. Syncfusion is proud to hold the following industry awards.

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