CustomDocumentProperties Property
Returns a DocumentProperties collection that represents all the custom document properties for the specified presentation. Read-only.
For information about returning a single member of a collection, see Returning an Object from a Collection.
Remarks
Use the BuiltInDocumentProperties property to return the collection of built-in document properties.
Example
This example adds a static custom property named "Complete" for the active presentation.
Application.ActivePresentation.CustomDocumentProperties _
.Add Name:="Complete", LinkToContent:=False, _
Type:=msoPropertyTypeBoolean, Value:=False
This example prints out the active presentation if the value of the "Complete" custom property is True.
With Application.ActivePresentation
If .CustomDocumentProperties("complete") Then .PrintOut
End With