public PdfGroupingAlgorithms(final PdfData pdf_data,final boolean isXMLExtraction){
  this.pdf_data=pdf_data;
  this.isXMLExtraction=isXMLExtraction;
  colorExtracted=pdf_data.isColorExtracted();
}

public PdfGroupingAlgorithms ( final PdfData pdf_data , final boolean isXMLExtraction ) { this . pdf_data = pdf_data ; this . isXMLExtraction = isXMLExtraction ; colorExtracted = pdf_data . isColorExtracted ( ) ; }
create a new instance , passing in raw data
