Saving Initial Image
To avoid cluttering up your hard disk with similar images, you can customize the program so that it won't save an initial image. The initial image is replaced with processed one.
To use this option, go to Preferenses (Edit menu -> Preferences), remove a tick from Save initial image while processing and press OK. To save the initial image, tick this option.
Please, note that by deleting metadata you are losing the opportunity to apply all effects based on image metadata. It won't be possible to sort images chronologically, rename images with shooting date, stamp shooting date, etc. So delete metadata only from images that have copies!
This option is available only in registered copy, since unregistered copy always inserts some additional text to all processed images.