Download PDF and Share Invoice Links

Download a professional PDF of any finalized invoice or share a secure public link your client can open without logging in.

Once you finalize an invoice, Invoice AI gives you two ways to get it in front of your client: a downloadable PDF and a shareable public link that anyone can open in a browser — no account required.

Public invoice link

Every finalized invoice has a secure public URL that you can share directly with your client. The link is generated at finalization and is tied to a unique, unguessable token stored in the public_url_token field of the invoice.

Anyone with the link can:

• View the formatted invoice in their browser
• Download the PDF from the invoice page

No login, no account creation, and no sensitive data beyond the invoice itself is exposed.

The public link is only available after finalization. Draft invoices don’t have a shareable URL because their content can still change.

Find the link in the UI

Open any finalized invoice from your dashboard. The shareable link appears in the invoice view — click the copy icon to copy it to your clipboard, then paste it into an email, message, or wherever you communicate with your client.

Get the link via the API

When you retrieve an invoice object through the API, the public_url_token field is included in the response. Construct the full URL as:

https://invoice.horizonpay.co/i/<public_url_token>

{
  "id": "in_xxx",
  "status": "open",
  "public_url_token": "tok_abc123...",
  ...
}

Store the public_url_token in your own system if you need to resurface the link later — you won’t have to make an extra API call to reconstruct it.

Download a PDF

From the invoice view

Open the invoice in your dashboard and click Download PDF. The PDF is generated on demand and downloads immediately to your device.

Via the API

Use the dedicated PDF endpoint to download the invoice as a PDF file programmatically:

curl -X GET https://invoice.horizonpay.co/api/v1/invoices/in_xxx/pdf \
  -H "Authorization: Bearer inv_live_..." \
  --output invoice.pdf

The endpoint returns the PDF with a Content-Type: application/pdf header. Use --output (curl) or the equivalent in your HTTP client to write it to disk.

PDF generation requires the invoice to be finalized. Calling the PDF endpoint on a draft invoice returns a 400 error.

What the PDF contains

The generated PDF includes:

• Your business name, address, and tax ID (from the snapshot taken at finalization)
• The client’s name and address (also from the finalization snapshot)
• Invoice number, issue date, and due date
• All line items with descriptions, quantities, unit prices, and tax rates
• Subtotal, tax amount, and total
• Your payment instructions and any notes you added

Because the PDF is built from the finalization snapshot, it always matches what was agreed at the time — even if you’ve updated your business profile since.

Sharing with clients

The recommended flow for getting a finalized invoice to a client is:

1. Finalize the invoice

   From the invoice builder, click Finalize. Invoice AI assigns an invoice number and generates the public URL.

2. Copy the public link

   Click the copy icon next to the shareable link in the invoice view. The link is ready to send.

3. Send the link to your client

   Paste the link into your preferred channel — email, Slack, WhatsApp, or any other messaging tool. Your client clicks the link to view and download the invoice directly.

If email delivery is enabled for your instance, you can use the built-in Email it button instead of manually copying the link. See Emailing Invoices for details.