| Leadtools.Annotations.Core Namespace > AnnObject Class : Metadata Property | 
public Dictionary<string,string> Metadata {get;}
Public ReadOnly Property Metadata As Dictionary(Of String,String)
public Dictionary<string,string> Metadata {get;}
@property (nonatomic, readonly) NSMutableDictionary* metadata;
HashMap<String, String> getMetadata();
get_Metadata();
The object metadata can be used to store any generic values associated with an annotation object. By default, the AnnObject will create a dictionary with the following keys/values and set it in Metadata:
| Key | Value | 
|---|---|
| "Subject" | Empty string | 
| "Author" | Empty string | 
| "Modified" | Empty string | 
| "Title" | Empty string | 
| "Content" | Empty string | 
| "Created" | Empty string | 
The metadata are saved and loaded as is by AnnCodecs to/from annotation files or streams.
Currently, the metadata is not used by the LEADTOOLS annotation toolkit for any special purposes. It is a user-define field.