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Table of Contents

Overview

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supports frevvo supports two types of Digital SignaturesNo special hardware is required. All you need is a smartphone or a computer with a browser that supports HTML5. 

  1. Signed Sections - Users authenticated to the  serverthe frevvo server, or in some cases by email, can digitally sign a section in a form/workflow, lock it down and prevent tampering with the data. A signed section creates a digital signature over the contents of the section, and if set to Wet Signature type, also captures a handwritten signature image. If legally binding signatures and/or authentication are required, Signed Sections should be used.

  2.  Signature Control-  also  frevvo also offers a Signature control that allows any user, including anonymous users, to sign electronically using either a track pad/mouse, stylus or a touch screen in use mode. Both authenticated and non-authenticated users may sign a form using a Signature control from the palette. The signature control only captures a handwritten signature image. It does not create a digital signature.

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Learn more about digital signatures in our blog article, "What Makes Electronic Signatures Legally Binding?" or view this video



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This paragraph applies to Signed Sections. Signed Sections may be used by an authenticated  userauthenticated frevvo user, who will be required to login, or by an email user who will be required to supply the correct email as well as first and last name to authenticate the signature. 

 uses frevvo uses public key cryptography. When a  server a frevvo server is first started, it generates a public and a private key. This is automatically generated using the RSA algorithm. There is no official certificate authority (CA); however, if you want one you can supply your own public and private keys that are certified by some authority (like Verisign). An official CA is not required, since the data is signed by and verified by using frevvo using keys generated by frevvo. You must keep the private key "private" by setting up good security practices to the serverfrevvo server's disk. The public key may be shared with anyone and, in fact, if you manage the server as the admin user, and click on Security you can see the public key displayed there.

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The Lock sign means that the next person in the workflow cannot remove the signature and edit the signed data. A good use case is an employee performance review where the manager starts the form, and signs the review, and sends it to the employee. You would check Lock sign so the employee cannot unsign and edit the data entered by the manager.

The Must sign property makes the signature required. With Must sign, a form cannot be submitted or a workflow is not sent to the next person until the signature is added. Checking Must sign will disable the None Required option from the Signature dropdown and automatically selects Text/Signature Image. You can change the Signature dropdown to Wet Signature 

Sections that are hidden/not hidden via a rule or the Visible property in the designer, behave as stated below with respect to Must Sign:

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If a user clicks the Sign this section button and there are invalid or empty required controls in the section, they will see this error "An error has occurred. Your signature could not be saved because the Section you are signing contains invalid controls. Please enter valid information in all such controls and click the Sign button again."

Note
  • Public forms that include a digital signature require a login. When the user clicks to save or sign, they will be prompted with the login screen.
  • Rules that result in value changes to controls after the Section is signed are not allowed. See this topic for the details.
  • Workflows that contain separate forms (vs. Linked Steps) and need to show the Signed Section on multiple steps must include all of the same controls inside the Section on each form.

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In order to use a Topaz signature pad with a particular laptop or workstation, driver and web api software modules must be installed before connecting the device to your computer. Refer to the instructions below InstallingtheTopazElectronicSignaturePad.

Installing the Topaz Electronic Signature Pad

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