Command line tool for batch processing pictures to resize and watermark them. Processes all *.jpg/*.jpeg files found in a specified directory. Optionally resizes bitmaps (proportionally) before applying a watermark. Accepts any file format of: jpeg, png, tiff or gif, as a watermark bitmap. Applies a watermark using the screen method. Optionally extracts EXIF information from the source file and inserts it into the resulting file.