## Overview

Selling to customers in different countries? With **Auto-detect customer language**, Fordeer PDF Invoice translates your PDF documents (invoices, packing slips, refunds, quotes) into each customer's language automatically, so you don't have to send one-language invoices to every market.

You choose how the app detects the language:

* **Auto** – uses the customer language detected by Shopify

* **Based on billing address** – uses the language of the billing address country

* **Based on shipping address** – uses the language of the shipping address country

When the feature is off, all PDF templates use your **Default Language**.

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## How to set up Auto-detect customer language

### Step 1: Open the Languages settings

From your Shopify admin, go to **Apps > Fordeer PDF Invoice > Settings**, then select the **Languages** tab.

### Step 2: Turn on Auto detected customer language

Switch on the **Auto detected customer language** toggle. The app will now translate PDF templates into the customer's primary language based on their detected location.

![](https://chat.fordeercommerce.io/rails/active_storage/blobs/redirect/eyJfcmFpbHMiOnsibWVzc2FnZSI6IkJBaHBBdXNJIiwiZXhwIjpudWxsLCJwdXIiOiJibG9iX2lkIn19--4afa0b19709fcf25b6bb9e1453129c633ea58a68/image.png)

### Step 3: Choose where to detect the language from

In the **Detect language from** dropdown, select one option:

<!--cw-colwidths:294,338,0-->
| Option                                       | How the language is detected                                                | Best for                                                                             |
| -------------------------------------------- | --------------------------------------------------------------------------- | ------------------------------------------------------------------------------------ |
| Auto (customer language detected by Shopify) | The language the customer used when browsing and checking out on your store | Stores using Shopify Markets or a translation app with multiple storefront languages |
| Based on billing address                     | The main language of the country in the customer's billing address          | B2B stores, where invoices go to the paying company or accounting team               |
| Based on shipping address                    | The main language of the country in the customer's shipping address         | Packing slips and documents read by the person receiving the order                   |

Click **Save** to apply your changes.

### Step 4 (Optional): Adjust the translation wording

If you want to change how a label is worded in a specific language, go to the **Adjust Translation** section and click **Edit translation** next to that language. For example, you can change *Invoice* to *Tax Invoice*, or adjust the wording of *Subtotal* or *Billing address*.

To customize a language that isn't listed yet, click **Create new translation**, select the language, then edit the labels you want to change.

![](https://chat.fordeercommerce.io/rails/active_storage/blobs/redirect/eyJfcmFpbHMiOnsibWVzc2FnZSI6IkJBaHBBdXdJIiwiZXhwIjpudWxsLCJwdXIiOiJibG9iX2lkIn19--605887a6ab0de7a9f38431586c0b14384353de28/image.png)

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## Tips

* Download a test invoice from **Orders** for an order with a foreign address to check the result.

* Product titles and variant names come from your Shopify product data. Translate them in Shopify (**Settings > Languages**) or your translation app so they also appear in the customer's language.

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