There are four main options for capturing signatures from a web application:
1. The Wacom Ink SDK for Signatures for JavaScript
As the name implies, this is designed purely for use with JavaScript. Some of the main advantages are:
i) It is cross-platform
ii) It does not require the installation of any software on the client PC
Details on browser compatibility can be found in the README document for the sample code on GitHub.
NB: the ink SDK for Signatures for JavaScript is charged on a transaction basis, i.e. per signature, and in most cases the minimum number of transactions is 10,000 per year.
Sample code for this SDK is available at https://github.com/Wacom-Developer/signature-sdk-js.
2. The Wacom Ink SDK for Signatures for Windows
This is a fast-development SDK for use on Windows PCs only. Its browser subcomponent, SigCaptX, is compatible with Chrome, Firefox and Edge for capturing signatures. The main SDK and the SigCaptX subcomponent must be installed on the end user's PC.
Sample code is available at https://github.com/Wacom-Developer/sdk-for-signature-sigcaptx-windows
All Wacom Signature SDKs can be downloaded at:
https://developer.wacom.com/en-us/developer-dashboard/downloads
Please see also this comparison table for the JavaScript SDK and SigCaptX
3. Sign pro PDF API
This API enables you to invoke Sign pro PDF via a JSON script or to embed positional text tags within the PDF itself. You can download a trial version of the sign pro PDF API here.
4. STU SigCaptX
STU SigCaptX is the cross-browser component of the STU SDK for Windows which can be downloaded under "Wacom Device Kit" from https://developer.wacom.com/en-us/developer-dashboard/downloads
STU SigCaptX, like the STU SDK itself, does not require a licence and is free to use. By contrast with SigCaptX (the cross-browser component of the Ink SDK for Signatures for Windows) STU SigCaptX does not provide any ready-made user interface so this must be generated using JavaScript as illustrated in the sample code provided on Github at https://github.com/Wacom-Developer/stu-sdk-sigcaptx-samples.
For a comparison of the Ink SDK for Signatures for Windows and the STU SDK for Windows please see the following FAQ: Differences between STU and Signature SDKs – Developer Support
Pricing
If you have any enquiries about costs on any of the above options, please contact your regional Wacom Sales Manager. If you don't know who this is, please contact the Wacom Solutions Team at enterprise@wacom.eu for assistance, or use the "Submit a request" link at the top of this page.