Exporting each layers as separate PDF

Hello,

I am trying to export each layer in an ID cs3 document as a PDF file.  Any help is welcome.

What i have done so far is creating a temporary document for each layer, copy/paste the layer contents to that temp doc and exporting the document as pdf.  But i am having problem with big layers when copy/paste due to the size limit of the clipboard.  Is there a way to simply export each layers to a separate pdf file without copy/pasting. Thanks

var targetDocument = app.documents[0];
activeDocument = targetDocument;
layerCount = targetDocument.layers.length;
var myPDFExportPreset = app.pdfExportPresets.item("myPDFpreset");
for (var ii = layerCount - 1; ii>=0; ii--) {
        var myObjectList = new Array;
        targetLayer = targetDocument.layers[ii];

        for(var myCounter = 0; myCounter < targetLayer.pageItems.length; myCounter++){

          myObjectList.push(targetLayer.pageItems.item(myCounter));
       
        }

       
        app.select(myObjectList);
       
        app.copy();

        var myDoc = app.documents.add();
        app.paste();
       
        myDoc.exportFile(ExportFormat.pdfType, File("c:/" + ii + ".pdf"),false);

        myDoc.close(SaveOptions.no);
   
    }