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Formidable Digital Signatures

v3.2.1Unlimited sites

Formidable Digital Signatures is a WordPress plugin that adds electronic signature capture to Formidable Forms.

Product facts

Version
3.2.1
Released
22 October 2026
Type
Plugin
Licence
GPL
Included in
Every plan, or $0.90 on its own

Overview

Paper-based signing is slow. Documents get printed, signed, scanned and mailed back, and each step adds delay and admin work. This plugin removes those steps by placing a signature field inside the form people already fill out. Users sign on any device, and the signed result is stored with the submission in your WordPress database for easy access later.

The plugin works with Formidable Forms, so you add a signature field the way you add any other field. You can adjust the field to match your branding and workflow. It also works with approvals and notifications, and signed forms can be exported as PDFs or shared by email. It is built with privacy in mind to help with data protection requirements, and it supports multiple languages.

Features

  • Signature fields for Formidable Forms: Add a signature field to any Formidable Forms form, so signing happens as part of the same submission and visitors never leave your site.
  • Sign on any device: Users can draw a signature with a mouse, a stylus or a finger, which makes signing practical on desktops, tablets and phones.
  • Customizable field options: Adjust the signature fields to fit your branding and workflow requirements, so the form looks consistent with the rest of your site.
  • Automatic signature storage: Signatures and signed documents are stored in your WordPress database, which keeps records easy to find and review.
  • Approvals and notifications: The plugin works with approval and notification workflows, so the right people can review a signed submission as it comes in.
  • PDF export and email sharing: Export signed forms as PDFs or send them by email to keep stakeholders informed without extra manual steps.
  • Privacy-minded design: It is built with privacy in mind to help you meet data protection regulations, including GDPR, when collecting signed forms.
  • Multi-language support: Forms and signature fields support multiple languages, which helps when your audience signs in different languages.

Best for

  • Businesses collecting signed contracts through WordPress forms
  • Sites gathering consent forms or approval documents online
  • Formidable Forms users replacing print-and-scan signing

Changelog

Version 3.2.1 — 21 October 2026

  • Fixed A required Signature field returned a "cannot be blank" error when the signature was sent as a string through the REST API, such as from a Send API action. Typed text, an image tag, or a PNG link are now accepted.

Earlier versions

  • 3.2 (17 August 2026): 3 new, 2 fixed
  • 3.1 (4 August 2026): 3 fixed, 1 security, 1 removed
  • 3.0.6 (9 September 2025): 1 improved, 1 fixed

FAQ

Is Formidable Digital Signatures free?

The code of Formidable Digital Signatures is licensed under the GPL, so anyone may use, change and share it. Buy GPL is a paid service: a plan or a purchase of Formidable Digital Signatures gives you the download and its updates. The developer's own support, licence key and online services are not included.

Which version of Formidable Digital Signatures is this?

Version 3.2.1, released 22 October 2026. New versions appear here when the developer publishes them.

How do I update Formidable Digital Signatures?

Install Buy GPL Updater on your site and paste your key from My Account. It installs new versions of Formidable Digital Signatures for you.