แก้ไขคุณสมบัติ PPSM โดยใช้ C#

// Instantiate the Presentation class that represents the Presentation
Presentation presentation = new Presentation("presentation.ppsm");

// Create a reference to IDocumentProperties object associated with Presentation
IDocumentProperties documentProperties = presentation.DocumentProperties;

// Set the builtin properties
documentProperties.Author = "Aspose.Slides for .NET";
documentProperties.Title = "Modifying Presentation Properties";
documentProperties.Subject = "Aspose Subject";
documentProperties.Comments = "Aspose Description";
documentProperties.Manager = "Aspose Manager";

// Save your presentation to a file
presentation.Save("DocumentProperties_out.ppsm", SaveFormat.Ppsm);

// Instantiate the Presentation class
Presentation presentation = new Presentation();

// Getting Document Properties
IDocumentProperties documentProperties = presentation.DocumentProperties;

// Adding Custom properties
documentProperties["New Custom"] = 12;
documentProperties["My Name"] = "Aspose Metadata Editor";
documentProperties["Custom"] = 124;

// Getting property name at particular index
String getPropertyName = documentProperties.GetCustomPropertyName(2);

// Removing selected property
documentProperties.RemoveCustomProperty(getPropertyName);

// Save your presentation to a file
presentation.Save("CustomDocumentProperties_out.ppsm", SaveFormat.Ppsm);