When using the Image Processor Script to batch process raw files in Bridge or Photoshop, it’s important to know that the workflow settings in Adobe Camera Raw might have an effect on the resulting files. In this example, I selected the raw files in Bridge and choose Tools > Photoshop > Image Processor. I want the resulting images to be a maximum of 2000 pixels in the long side so I enter that value in the width and height options.
If, in Camera Raw, the Image Sizing options are disabled (or if they are set larger than 2000 pixels), then I’ll have nothing to worry about. If however, the Resize to Fit option is enabled in the Workflow Options in Camera Raw, and the Long Side dimension set lower than 2000 pixels (as is illustrated in the example below), Camera Raw will resample the image down to 1000 pixels (throwing away information) and then the Image Processor Script will up-sample it (making up information) based on the Image Processor settings.
Because resampling down and then up will lower the quality of the final image, I would be better off unchecking the Resize to Fit option in Camera Raw (or setting it to the same dimensions that I have set in the Image Processor Script).