Layout preserved
Keep your original formatting, text, fonts, images and tables. We just switch the language.
Translate PowerPoint files online
AI translation with your formatting fully preserved.
100% hosted in Switzerland
Fully compliant with GDPR and FADP
ISO 27001-certified
Verified by pros in minutes
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Trusted by 1,500+ leading brands across Europe. Explore case studies.
Why choose our online PowerPoint translator?
Better than DeepL
In 3 out of 4 languages according to blind tests by professional translators. Read research paper.
Sovereign, adaptive AI
Supertext is powered by the latest LLM technology. We don’t just translate words – but context, tone and meaning.
Pro translators on demand
Need extra certainty? Our 3,000 experienced linguists are just one click away. In minutes, not days.
What makes a good PowerPoint translation
SECURITY
Your PPTX files never leave Swiss infrastructure
Presentations for board meetings, investor pitches, and strategic documents often contain non-public information – financial forecasts, product roadmaps, M&A details. PowerPoint’s built-in translation feature routes files through Azure servers, which are hosted in the US by default. Supertext processes your .pptx files exclusively on Swiss servers – fully compliant with GDPR and FADP.
Supertext
- Speaker notes
- Overflow detection
- Swiss hosting
DeepL
- No speaker notes
- No overflow detection
- EU hosting only
Four steps from upload to translated PPTX
No copy-paste, no reformatting.
1
Upload & scan
All slides, notes, master elements and grouped objects identified
2
Extract & flag
Text pulled from all objects, overflow risk detected before translation
3
Translate
AI translation runs with character constraints enforced per text box
4
Download
Translated .pptx with animations intact and speaker notes included
Looking for a different format?
We expertly handle these file formats.
NOW AVAILABLE
Seamlessly translate PPTX files and more.
Right in the tools you work with every day.
Better from the get go, perfect when customised
- 90%more ready to publish translations
- 64%fewer edits needed
- 3xfaster time to market
Want to see it on your own content? Try Supertext Enterprise.
Frequently asked questions
Of course – you can save a separate glossary for any desired language combination. Then all you need to do is activate the relevant glossary when translating, and it will be taken into account in the output.
Yes. Simply enter the desired person in the Profile tab of the cockpit under “Access authorisations”.
Yes, we are also happy to offer on-premise hosting for enterprise customers. Interested? Get in touch with us.
All subscriptions except Enterprise and API can be tested for 30 days free of charge. Simply create an account, start the test month and you can benefit from all additional features.
Of course: the Supertext API runs via a separate monthly subscription. This can also be combined with our online translator subscriptions, if desired.
Yes, the number of connections is not limited.
Want to know more? Let's talk.
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