Photoshop script to export for web - going through folders recursively and saves in the source folder inside a new folder "Optimized"

photoshop-script-export-to-web-recursive-folder-scan.jsx

// Photoshop export for web - going through folders recursively

function getOutputFolder(file) {
  var parentFolder = file.parent;
  var outputFolder = new Folder(parentFolder + "/Optimized");
  if (!outputFolder.exists) {
      outputFolder.create();
  }
  return outputFolder;
}


function processFile(file) {
  if (file instanceof File && file.name.match(/\.(jpg|jpeg|png|gif)$/i)) {
    var doc = open(file)
    var outputFolder = getOutputFolder(file);


    var options = new ExportOptionsSaveForWeb()
    var fileName = file.name
    var fileExtension = fileName.split(".").pop().toLowerCase()

    switch (fileExtension) {
      case "jpg":
      case "jpeg":
        options.format = SaveDocumentType.JPEG
        options.quality = 60 // Adjust for your needs
        break;
      case "png":
        options.format = SaveDocumentType.PNG 
        options.PNG8 = false
        options.transparency = true 
        break;
      case "gif":
        options.format = SaveDocumentType.COMPUSERVEGIF
        break;
    }

    var saveFile = new File(outputFolder + "/" + fileName)
    doc.exportDocument(saveFile, ExportType.SAVEFORWEB, options)
    doc.close(SaveOptions.DONOTSAVECHANGES)
  }
}

function processFolder(folder) {
  var files = folder.getFiles();
  for (var i = 0; i < files.length; i++) {
      var file = files[i];
      if (file instanceof Folder) {
          processFolder(file); // Recursive call for subfolders
      } else {
          processFile(file); // Process the file
      }
  }
}

// Choose input-folder
var inputFolder = Folder.selectDialog("Choose a folder")

if (inputFolder != null) {
  processFolder(inputFolder);
}