> For the complete documentation index, see [llms.txt](https://support.docstudio.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://support.docstudio.com/user/template-builder/template-dynamic-fields/autonumber-field.md).

# Autonumber Field

Use **Autonumber field** to insert an automatically generated counter value.

The counter increments for envelopes created from the same template.

You can place this field in:

* structured documents
* PDF documents

### Add an autonumber field

{% columns %}
{% column %}

1. Open the template in edit mode.
2. In the **Fields** panel find the **Autonumber field** and add it to the template.
3. Configure the field and click **Save**.
   {% endcolumn %}

{% column %}

<figure><img src="/files/RNoFrLzoOCr6LpCkB82R" alt=""><figcaption></figcaption></figure>
{% endcolumn %}
{% endcolumns %}

### Field settings

Click on the placed field to reopen settings menu.

{% columns %}
{% column %}

* **Name** — field name shown in the document
* **Tooltip** — additional hint shown on hover
* **Prefix** — text added before the number
* **Search** — makes the field available for search/filtering in the mailbox UI (if enabled in your setup)
  {% endcolumn %}

{% column %}

<figure><img src="/files/txlnQcD7ldm92nldmvpa" alt=""><figcaption></figcaption></figure>
{% endcolumn %}
{% endcolumns %}