Skip to main content

Documentation Index

Fetch the complete documentation index at: https://docs.penbox.io/llms.txt

Use this file to discover all available pages before exploring further.

June 1, 2026
FormsSecurityBranding

Embed forms securely in your website

You can now embed forms directly into your public website, customer zone, or application using an <iframe>. This lets your users complete forms and upload documents without ever leaving your product, keeping their experience fully integrated and on-brand.Embedded form showcase

Double opt-in security

To protect your forms from unauthorized embedding, we’ve implemented a strict double opt-in security model:
  • Workspace level. Admins can declare allowed parent origins in Settings > Branding under Allowed parent origins.
  • Form level. Toggle Embedding on for individual form templates to specify exactly which forms can be embedded.

A tailored embedding experience

We’ve built several options to ensure the embedded form feels like a natural part of your site:
  • Hiding the navigation. Automatically hide the top navigation bar and adjust the layout for a compact frame.
  • Auto-starting forms. Skip the welcome page to let users start filling out the form immediately.
  • Lifecycle communication. Listen to events from the form so your site knows when it has loaded (ready) and when the user finishes (completed).

Custom background color

You can now configure a custom Background color in your workspace Branding settings. This color applies exclusively when forms are loaded in embed mode, making it easy to match the background to your site’s design.Read our Embedding guide → to learn how to set up and integrate forms on your website.