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Presentation with embedded restricted fonts doesn't open correctly from VSTO Add-in

When I open presentation with restricted embedded fonts(that I don't have installed) using VSTO add-in it opens it in read-only mode without asking anything, usually there is a dialog with the option to replace embedded fonts to open document in edit mode. Is there a way to force it using Microsoft.Office.Interop.PowerPoint?

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What code do you use for opening a PowerPoint presentation?

Do you get the same results if you do the same steps manually?

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Hey Eugene,

With the code it always opens in read-only mode without asking:

     private readonly Application _application;
     public void OpenPresentation(string filePath)
         var presentation = _application.Presentations.Open(filePath, Untitled: MsoTriState.msoTrue, ReadOnly: MsoTriState.msoFalse);

But with manual steps it gives me the dialog first:


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You are passing false to open the file with removed restricted fonts:

ReadOnly: MsoTriState.msoFalse

If you need to preserve fonts and open the file in the read-only mode you need to pass true.

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