---
title: Add hidden fields to Paperform
description: "Paperform is a form builder that allows you to capture leads on your website. With Leadsources, you can **track the source of the leads generated in Paperform**, alongside 6 other lead source data. In this guide, we will show you…"
url: "https://help.leadsources.io/docs/add-hidden-fields-paperform/"
updated: "2024-08-07"
category: Add Hidden fields
---

# Add hidden fields to Paperform

Paperform is a form builder that allows you to capture leads on your website.

With Leadsources, you can **track the source of the leads generated in Paperform**, alongside 6 other lead source data.

In this guide, we will show you **how to add hidden fields in Paperform**to start capturing the source of your leads.

[Add hidden fields to Paperform](https://www.youtube.com/embed/hmm6dPsXomg?feature=oembed)

## Step 1: Open the form

**Log in**to your Paperform account.

From the Dashboard, **open the form**you want to edit.

![](http://help.leadsources.io/wp-content/uploads/2024/07/Hidden-fields-Paperform-1-1024x461.webp)

## Step 2: Add the hidden fields

To add hidden fields to your form, click on the form to add a new field and write "**/hidden**".

Click on the field named **Hidden**to add it to your form.

![](http://help.leadsources.io/wp-content/uploads/2024/07/Hidden-fields-Paperform-2-1024x461.webp)

Add a total of 7 hidden fields and name them as follows:

- Channel
- Source
- Campaign
- Term
- Content
- Landing page
- Landing page subfolder

![](http://help.leadsources.io/wp-content/uploads/2024/07/Hidden-fields-Paperform-3-1024x461.webp)

## Step 2: Set up the prefill keys

**Context:** In this step, we set up the hidden fields one by one to receive the lead source data captured by Leadsources.

For Leadsources to pass lead source data in the hidden fields, we will set up the **prefill keys**on Paperform.

Next to each hidden field, select **Configure**.

![](http://help.leadsources.io/wp-content/uploads/2024/07/Hidden-fields-Paperform-4-1024x461.webp)

A pop-up opens, write the **Pre-fill Key**for each hidden field as follows:

| **Hidden field** | **Prefill key** |
| --- | --- |
| Channel | channel |
| Source | source |
| Campaign | campaign |
| Term | term |
| Content | content |
| Landing page | landingpage |
| Landing page subfolder | landingpagesubfolder |

![](http://help.leadsources.io/wp-content/uploads/2024/07/Hidden-fields-Paperform-5-1024x461.webp)

Click **Save changes**. Publish your form.

You are all set!

Leadsources will **capture****and store the leads data****in these 7 hidden fields**. This data will be visible from the Paperform submissions page, alongside the form's responses (name, email, etc.).