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This script will process a folder and it's sub folders of JPG's and save overwrite the originals with the new SFW JPG's

Alter the quality to suit.

[code]

var imageFolder = Folder.selectDialog("Select the folder with JPGs to process");

if (imageFolder != null)  processFolder(imageFolder);

function processFolder(folder) {

    var fileList = folder.getFiles()

     for (var i = 0; i < fileList.length; i++) {

        var file = fileList[i];

  if (file instanceof File && file.name.match(/\.jpg$/i)) {

                 open(file);

var doc = app.activeDocument;

var strtRulerUnits = app.preferences.rulerUnits;

var strtTypeUnits = app.preferences.typeUnits;

app.preferences.rulerUnits = Units.PIXELS;

app.preferences.typeUnits = TypeUnits.PIXELS;

var saveFile = new File(decodeURI(activeDocument.fullName.fsName));

saveFile.remove();

SaveForWeb(saveFile,60); // set quality to suit

app.activeDocument.close(SaveOptions.DONOTSAVECHANGES);

app.preferences.rulerUnits = strtRulerUnits;

app.preferences.typeUnits = strtTypeUnits;     

        

  } else

if (file instanceof Folder) {

       processFolder(file);

     }

   }

}

function SaveForWeb(saveFile,jpegQuality) {

var sfwOptions = new ExportOptionsSaveForWeb();

   sfwOptions.format = SaveDocumentType.JPEG;

   sfwOptions.includeProfile = false;

   sfwOptions.interlaced = 0;

   sfwOptions.optimized = true;

   sfwOptions.quality = jpegQuality;

app.activeDocument.exportDocument(saveFile, ExportType.SAVEFORWEB, sfwOptions);

}

[/code]