Saving PDF - Hi and Lo res - JSX

Hi all,

I've been trying to figure this out but to no avail. Basically I want to save a Hi and Lo res PDF of an ai file using a script. I've done some searching around on the forum and come across this script. The problem I have is that the 2 PDFs produced are both the same size. I want one to be compressed and one to be Hi res. Where am I going wrong? Below is the script I'm using.

#target illustrator

#targetengine "main"

for (x=0;x<app.documents.length;x++)

{

     var workingDoc = app.documents[x];

     var workingDocFile = workingDoc.fullName;

// populate these with your settings

     var lowResOpts = new PDFSaveOptions();

     lowResOpts.colorDownsampling = 150

     var lowResOpts = new PDFSaveOptions();

     lowResOpts.compressArt = true

     var highResOpts = new PDFSaveOptions();

     var lowResFile = new File(workingDocFile.toString().replace(".ai","_LR.pdf"));

     workingDoc.saveAs(lowResFile,lowResOpts);

     var highResFile = new File(workingDocFile.toString().replace(".ai","_HR.pdf"));

     workingDoc.saveAs(highResFile,highResOpts);

     workingDoc.close(SaveOptions.DONOTSAVECHANGES);

}

Thanks in advance!