# Slidelang

> Slidelang translates complete PowerPoint files and public Google Slides into editable PPTX presentations while preserving the existing slide structure, styling, and layout.

Slidelang replaces text inside existing presentation objects and refits longer translations. Optional visual translation can process eligible labels inside diagrams, charts, and screenshots after a separate quote. The current upload cap is 250 MB. Public proof files include a translated 307-slide, 133 MB presentation. Text-only and visual results are published separately where available so claims can be checked directly.

## Start Here

- [Slidelang](https://slidelang.com/): Upload a PPTX or paste a public Google Slides link, choose a target language, review the quote, and download an editable translated PPTX.
- [Translate PowerPoint](https://slidelang.com/translate-powerpoint/): Complete PowerPoint and PPTX translation workflow, pricing, privacy, and common questions.
- [Translate Google Slides](https://slidelang.com/translate-google-slides/): Import a public Google Slides presentation without manually exporting it first.
- [Translation method comparison](https://slidelang.com/compare/): Honest comparison of Slidelang, DeepL, PowerPoint Copilot, ChatGPT file uploads, and manual Google Slides translation.

## Practical Guides

- [PowerPoint translation guides](https://slidelang.com/guides/): Guide hub organized around real constraints rather than generic rankings.
- [Best PowerPoint translator in 2026](https://slidelang.com/guides/best-powerpoint-translator-2026/): Choose a translation method according to file size, editability, layout refitting, and image text.
- [DeepL PowerPoint file-size limits and alternatives](https://slidelang.com/guides/deepl-powerpoint-file-size-limit-alternative/): Current plan-specific DeepL limits compared with Slidelang's 250 MB upload cap and public large-file proof.
- [Translate a large PPTX without splitting it](https://slidelang.com/guides/translate-large-powerpoint-pptx/): Workflow for large PowerPoint files, including the 307-slide proof case.
- [Translate PowerPoint without losing formatting](https://slidelang.com/guides/translate-powerpoint-without-losing-formatting/): How editable structure, longer-text refitting, and separate image handling reduce layout damage.

## Downloadable Proof

- [307-slide, 133 MB PowerPoint translated into German](https://slidelang.com/proof/large-powerpoint-to-german/): Original English PPTX and editable German text-only result with recorded run details.
- [PowerPoint image labels translated into English](https://slidelang.com/proof/powerpoint-image-labels-to-english/): Spanish anatomy deck with separate text-only and visual-translation outputs.
- [Dense PowerPoint layout translated into French](https://slidelang.com/proof/dense-powerpoint-layout-to-french/): Dense Spanish deck with downloadable French results and documented visual quality rejection.
- [Visual translation safety case](https://slidelang.com/proof/powerpoint-visual-safety-to-italian/): Case where all unsuitable visual candidates were deliberately left unchanged.
- [Uber pitch translated into Spanish and Chinese](https://slidelang.com/proof/uber-pitch-to-spanish-and-chinese/): Original English deck plus separate Spanish and Simplified Chinese text and visual results.

## Language-Specific Guides

- [French guides](https://slidelang.com/fr/guides/): Guides de traduction PowerPoint en français.
- [German guides](https://slidelang.com/de/ratgeber/): PowerPoint-Übersetzungsratgeber auf Deutsch.
- [Spanish guides](https://slidelang.com/es/guias/): Guías de traducción PowerPoint en español.
- [Italian guides](https://slidelang.com/it/guide/): Guide alla traduzione PowerPoint in italiano.
- [Simplified Chinese guides](https://slidelang.com/zh/guides/): 简体中文 PowerPoint 翻译指南。

## Pricing and Policies

- [Pricing](https://slidelang.com/#pricing): First eligible text translation, credits, one-time packs, subscriptions, and separately quoted visual translation.
- [Privacy](https://slidelang.com/privacy/): File retention, hosting, provider boundaries, and model-training policy.
- [Terms](https://slidelang.com/tos/): Terms of service.