Digital signature using signature_pad
Hello there, I came across an opensource tool that is used to get a digital signature on the web using javascript. It is called signature_pad.
With 383k+ weekly downloads, I found signature_pad library is easy to install and use. It also has over 9.3k+ stars on Github making it a popular choice.
Installation
npm install — save signature_pad
Usage
const canvas = document.querySelector("canvas");
const signaturePad = new SignaturePad(canvas);
// Returns signature image as data URL (see https://mdn.io/todataurl for the list of possible parameters)
signaturePad.toDataURL(); // save image as PNG
signaturePad.fromDataURL("data:image/png;base64,iVBORw0K...");
Please note that you can check the official signature_pad’s Readme.md for further information. I have only included the code snippet that I dominantly used.
Although, I have had some issues around setting canvas height and width without breaking the signature feature. I have worked my way around using this https://github.com/szimek/signature_pad/issues/185
Demo
Check out this demo from the official docs.
Conclusion:
There are popular tools like PandaDoc, Docusign that are paid. If you are looking for an open source tool to help you with capturing a digital signature, I would recommend signature_pad
About me:
Hey, my name is Ramu Narasinga. I study large open-source projects and create content about their codebase architecture and best practices, sharing it through articles, videos.
I am open to work on interesting projects. Send me an email at ramu.narasinga@gmail.com
My Github — https://github.com/ramu-narasinga
My website — https://ramunarasinga.com
My Youtube channel — https://www.youtube.com/@ramu-narasinga
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