Tips and cases of use for a successful WordPress website with calculated forms.
In many online forms, collecting data isn't always enough. There are situations where you need to confirm a user's identity, their approval, or their commitment - and the simplest way to do that is with a signature.
Signature controls are especially important when working with contracts, authorizations, legal consents, terms and conditions, service orders, quotes, work reports, or medical and educational forms. In all these cases, a signature adds an extra layer of trust, clarity, and traceability, helping avoid misunderstandings and streamlining administrative or legal processes.
And in today's digital world, allowing users to sign directly from their browser - whether they're on a computer, a tablet, or a mobile device - makes the experience smoother, eliminates the need to print documents, and speeds up information management.
In this video, we'll walk through how the Signature Add-on for Calculated Fields Form lets you easily add a handwritten signature field to your forms, giving you a practical, professional, and fully integrated solution.
The signature control transforms a regular form field into a handwritten signature area, where users can sign with their mouse or with their finger on touch devices.
The first step is to activate the Signature Add-on:
Once activated, a new section will automatically appear in your form settings, allowing you to enable and configure the signature control.
Next, you'll need to add a field that will be submitted with the form - typically a single-line text field.
This step is crucial:
In the field's settings, enable “Accept submitting HTML as field value”.
This allows the field to correctly receive the signature image, which is sent as HTML content.
Once that's done, turning this field into a signature control is very simple:
With just these options, your field is ready to work as a fully integrated signature control.
How do you access the user's signature, and how do you include it in an email notification or inside a generated PDF?
The Signature Add-on stores the signature directly in the database, instead of creating an image file. This is more secure, since it avoids generating files that could be accessed from the file system and keeps the information protected inside the form.
To include the signature in an email or in a PDF generated with the PDF Generator Add-on, simply use the tag of the original field you converted into a signature control.
<%fieldname6_value%>
The user's signature will be inserted automatically, keeping the document consistent and valid.
And that's it. Your signature control is now fully set up in Calculated Fields Form - a simple, secure, and seamless way to capture user signatures directly from your form.