'For complete examples and data files, please go to https://github.com/groupdocsmetadata/GroupDocs_Metadata_NET
' initialize PptFormat
Dim PptFormat As New PptFormat(Common.MapSourceFilePath(filePath))
' use one of the following methods
' method:1 - clear custom properties
PptFormat.ClearCustomProperties()
' method:2 - clear custom properties
PptFormat.DocumentProperties.ClearCustomData()
' save file in destination folder
PptFormat.Save(Common.MapDestinationFilePath(filePath))