---
title: "Localization: Change languages in Flutter PDF viewer | Nutrient"
canonical_url: "https://www.nutrient.io/guides/flutter/user-interface/localization/"
md_url: "https://www.nutrient.io/guides/flutter/user-interface/localization.md"
last_updated: "2026-06-11T09:57:19.033Z"
description: "Change the language in the Flutter PDF viewer on web using the PdfWebConfiguration class. Explore built-in support for multiple languages, including German and Spanish."
---

# Localization: Change languages in our Flutter PDF viewer

On Android and iOS, the language is set automatically based on the device’s language. On Web, you can set the language manually by using the `PdfWebConfiguration` class, like this:

```dart

PdfConfiguration(
  webConfiguration: PdfWebConfiguration(
    language: 'de',
  ),
)

```

## Supported languages

Nutrient Flutter SDK comes with many built-in languages:

- Arabic (ar)

- Chinese Simplified / Chinese Traditional (zh-Hans/zh-Hant)

- Croatian (hr)

- Czech (cs)

- Danish (da)

- Dutch (nl)

- English (en)

- English United Kingdom (en-GB)

- Finnish (fi)

- French (fr)

- French Canada (fr-CA)

- German (de)

- Greek (el)

- Indonesian (id)

- Italian (it)

- Japanese (ja)

- Korean (ko)

- Malay (ms)

- Norwegian Bokmål (nb-NO)

- Polish (pl)

- Portuguese Brazil / Portugal (pt-BR/pt-PT)

- Russian (ru)

- Slovak (sk)

- Slovenian (sl)

- Spanish (es)

- Swedish (sv)

- Thai (th)

- Turkish (tr)

- Ukrainian (uk)

- Welsh (cy)

---

## Related pages

- [Customizing PDF viewer styling in Flutter](/guides/flutter/user-interface/appearance-styling.md)
- [Customizing our PDF viewer in Flutter](/guides/flutter/user-interface.md)
- [Configuring PDF view properties](/guides/flutter/user-interface/configuration.md)
- [NutrientView Flutter widget](/guides/flutter/user-interface/nutrientview.md)
- [Show or hide the UI in our Flutter viewer](/guides/flutter/user-interface/ui-visibility.md)
- [View configuration reference](/guides/flutter/user-interface/view-configuration.md)