ASP.NET: Adding Electronic Signatures to Documents
An ASP.NET MVC sample demonstrates electronic signatures using an HTML5 canvas-based JavaScript signature pad. The captured signature image is sent to a controller action, which merges it into a named TextFrame placeholder in the document template using the MailMerge class.
An electronic signature is in many processes legally sufficient to prove an identity. According to the U.S. Federal ESIGN Act passed in 2000, an electronic signature is an:
Electronic sound, symbol, or process, attached to or logically associated with a contract or other record and executed or adopted by a person with the intent to sign the record.
This ASP.NET MVC sample shows how to build a JavaScript signature pad to electronically sign documents.
The template contains a TextFrame with a specific Name that specifies that the content of this frame should be replaced with a signature. The signature stamp itself consists of an image placeholder and a merge field that gets merged using the MailMerge class. The signature stamp is stored in a sub-template and can be edited separately from the main template.
The JavaScript signature pad uses an HTML5 canvas element to draw the signature. The created signature image will be passed to the Controller method SignDocument and merged into the image placeholder.
Download the sample from GitHub and test it on your own.
Download and Fork This Sample on GitHub
We proudly host our sample code on github.com/TextControl.
Please fork and contribute.
Requirements for this sample
- Visual Studio 2015 or better
- TX Text Control .NET Server (trial sufficient)
ASP.NET
Integrate document processing into your applications to create documents such as PDFs and MS Word documents, including client-side document editing, viewing, and electronic signatures.
- Angular
- Blazor
- React
- JavaScript
- ASP.NET MVC, ASP.NET Core, and WebForms
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