> For the complete documentation index, see [llms.txt](https://docs.payments.thalescloud.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.payments.thalescloud.io/perso-design-services/integrate-the-d1-api.md).

# Integrate the D1 API

### Use the Image ID with the D1 API

When your program supports picture cards, include the Image ID in the `cardImage` field when placing a card order.

{% hint style="info" %}
The `CardImageID` is the reference produced by the Perso Design Services platform after the artwork is validated and ready for print.
{% endhint %}

#### Prerequisites

* For the D1 API, the image with the specificed `cardImageID` **must already exist** within the Perso Design Services platform for it to be used when placing a card order.

#### API input

Required field when picture cards are enabled:

* `cardImage` (string): Reference to the approved, print‑ready image.

Example:

```json
{
  "cardImage": "img_1234567890"
}
```


---

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