Is it possible to Change the Author of the image through Scripting?

[subha_oviya]

I need to get the Author of the image through scripting. First i have to get the name of the Author which is already existing.And need to Rename the Author through script.  Its urgent requiremnt. pls help me out.

[Paul Riggott]

This example will read and put the Authors name to the ESTK console and write the new details back to the document.

#target bridge
loadXMPLibrary();
var thumb = app.document.selections[0];
 if(thumb.hasMetadata){
        var selectedFile = thumb.spec;
  var myXmpFile = new XMPFile( selectedFile.fsName, XMPConst.UNKNOWN, XMPConst.OPEN_FOR_UPDATE);
  var myXmp = myXmpFile.getXMP();    
  var arrItem='';
  var items = myXmp.countArrayItems(XMPConst.NS_DC, "creator");
   for(var i = 1;i <= items;i++){
 arrItem += myXmp.getArrayItem(XMPConst.NS_DC,  "creator", i);           
        }    
    $.writeln(arrItem);
}
var Author = "This is my new Author";
myXmp.deleteProperty(XMPConst.NS_DC, "creator");
myXmp.appendArrayItem(XMPConst.NS_DC, "creator", Author, 0,XMPConst.ARRAY_IS_ORDERED);
 if (myXmpFile.canPutXMP(myXmp)) { 
    myXmpFile.putXMP(myXmp);
         myXmpFile.closeFile(XMPConst.CLOSE_UPDATE_SAFELY); 
         } 
unloadXMPLibrary(); 
function loadXMPLib(){
if (ExternalObject.AdobeXMPScript == undefined) {
    ExternalObject.AdobeXMPScript = new ExternalObject("lib:AdobeXMPScript");
 }
}
function unloadXMPLib(){ 
   if( ExternalObject.AdobeXMPScript ) { 
      try{ 
         ExternalObject.AdobeXMPScript.unload(); 
         ExternalObject.AdobeXMPScript = undefined; 
      }catch (e){ } 
   } 
}