Examine Presentation
Aspose.Slides for .NET allows you to examine a presentation to find out its properties and understand its behavior.
Info
The PresentationInfo and DocumentProperties classes contain the properties and methods used in operations here.Check a Presentation Format
Before working on a presentation, you may want to find out what format (PPT, PPTX, ODP, and others) the presentation is in at the moment.
You can check a presentation’s format without loading the presentation. See this C# code:
IPresentationInfo info = PresentationFactory.Instance.GetPresentationInfo("pres.pptx");
Console.WriteLine(info.LoadFormat); // PPTX
IPresentationInfo info2 = PresentationFactory.Instance.GetPresentationInfo("pres.ppt");
Console.WriteLine(info2.LoadFormat); // PPT
IPresentationInfo info3 = PresentationFactory.Instance.GetPresentationInfo("pres.odp");
Console.WriteLine(info3.LoadFormat); // ODP
Get a Presentation Properties
This C# code shows you how to get a presentation’s properties (information about the presentation):
IPresentationInfo info = PresentationFactory.Instance.GetPresentationInfo("pres.pptx");
IDocumentProperties props = info.ReadDocumentProperties();
Console.WriteLine(props.CreatedTime);
Console.WriteLine(props.Subject);
Console.WriteLine(props.Title);
// ..
You may want to see the properties under the DocumentProperties class.
Update a Presentation Properties
Aspose.Slides provides the PresentationInfoUpdateDocumentProperties method that allows you to make changes to a presentation’s properties.
This C# code shows you how to edit a presentation’s properties:
IPresentationInfo info = PresentationFactory.Instance.GetPresentationInfo("pres.pptx");
IDocumentProperties props = info.ReadDocumentProperties();
props.Title = "My title";
info.UpdateDocumentProperties(props);
Useful Links
To get more information about a presentation and its security attributes, you may find these links useful: