How can i get specific text from pdf using pdfbox api in java

Question

I used this code and output was the entire page text and i want the specific text? any solutions please?

public class ReadingText {
 public static void main(String args[]) throws IOException {
    File file = new File("C:/PdfBox_Examples/new.pdf");
      PDDocument document = PDDocument.load(file);
      PDFTextStripper pdfStripper = new PDFTextStripper();
      String text = pdfStripper.getText(document);
      System.out.println(text);
      document.close();
    }
}