script to write to PDF metadata upon export

the INDD filename to the PDF 'Subject' (or keywords, copyright... anything really), not title

The script is executing before every save event, I wonder if you want it to be before an export? The metadata in InDesign’s description field shows in the PDF’s Subject field. This checks if the Description field is empty, and if it is inserts some text with the document’s name:

//startup script
#targetengine "session"

var el = app.eventListeners.add("beforeExport", onExport );

/**
* Function to run before an Export
*  the event 
*/
function onExport(evt){
    var md = app.activeDocument.metadataPreferences.description
    if (md == "") {
        md = "Original InDesign Document Name: " + evt.parent.name
    } 
}

Hi,

The easiest method would just be to change destNodeName to whatever value you would like.

for example - "ANewNodeName"

or add it as a new node

var myEventListener = app.addEventListener("beforeSave", function (myEvent) {

var doc = app.documents[0];

var docTitle = (doc.name);

var myDocXMP = app.activeDocument.metadataPreferences;

var destNamespace = "http://ns.adobe.com/xap/1.0/";

var destNodeName = "InDesignFileName";
var destNodeName2 = "OriginalInDesignFileName";

var nodeValue = docTitle;

myDocXMP.setProperty(destNamespace, destNodeName, nodeValue);
myDocXMP.setProperty(destNamespace, destNodeName2, nodeValue);
}

).name = "storeTitleXMP";

Malcolm