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How to Set a Default LanguageId for PowerPoint Documents?

I understand that each Portion can be set to a different LanguageId (e.g., "en-US", "ja-JP") via PortionFormat. However, is there a way to specify a default LanguageId for the entire document?

Also, what’s the purpose of AlternativeLanguageId? In the PowerPoint VBA object model, I can see the LangaugeID property under TextRange, but there is no AlternativeLanguageId. How is this property used?


Thank you for contacting support. I am working on the question you posted and will get back to you soon.

Unfortunately, I have not found a way to set a default language for an entire PowerPoint document. I’ve added a ticket with ID SLIDESNET-43700 to our issue-tracking system. Our development team will consider implementing such a feature. You will be notified when a new release of Aspose.Slides with the update is published.

I have also not found detailed information about that property. I’ve added a ticket with ID SLIDESNET-43701 to our issue-tracking system. We will provide the information ASAP.