Signature Field

The Signature field captures a hand-drawn signature on the device screen. This article covers how to add a Signature field and configure its settings.

How the Signature field works

A Signature field shows an Add Signature button in the FastField mobile app. The user signs on the screen with a finger or stylus. The app saves the signature as an image in the submission.

For example, a work order can end with a Technician Signature and a Client Signature. Each signature confirms who completed the work and who accepted it.

Tip
To ask users to confirm they've read something without signing, use a Required Acknowledgment field.

Add a Signature field

In the Form Builder, select Add Fields in the side bar.
Under Approvals, select Signature to add it after the selected field. You can also drag it onto the canvas where you want it.

The field appears on the canvas as Signature Field, and its field settings open on the General tab.

In Field Label, enter the question users see, for example Supervisor Signature.
In Quality, choose the image quality: Jpg Normal, Jpg Medium, Jpg High, or PNG.
To make sure every submission is signed, turn on Required Field.

Tip
Higher quality makes signatures sharper in reports, but it also makes submissions larger.

Configure the field

Use the General, Behavior, and Appearance tabs in Field Settings to control how the field works.

Tab	Setting	What it does
General	Field Label	The question users see on the form
General	Field Key	The key that identifies the field in submissions, rules, and calculations
General	Quality	The image quality of the saved signature
General	Required Field	Users must sign before they can submit the form
Behavior	Hide Field	Hides the field in the app
Behavior	Hide Field Label	Shows the field without its label
Behavior	Exclude From Reports	Leaves the signature out of reports. It stays in the submission data
Behavior	Enabled	When off, the field is grayed out and users can't sign
Behavior	Capture GPS Location	Records the GPS coordinates from when the user signed
Behavior	Capture Timestamp	Records the date and time the user signed
Appearance	Background Color	Gives the field a color. Learn more about alert types

Select Save Draft to save your changes. Users see them after you select Publish.

Set up the field with the Assistant

You can also ask the Assistant to add a Signature field or change its settings.

Select Assistant in the side bar.
Describe what you want, for example Add a required signature field called Supervisor Signature after Client Signature.
Send the message.

The Assistant can add, rename, and move the field, make it required, and capture the time and place of signing.