Unable to read exact line-separated text

I am working on reading a highlighted PDF document using PDBox. I was able to read the selected text in one line with both single and multiple words. However, I could not read the selected text line by line. Please find the following code example to read the highlighted text.

PDDocument pddDocument = PDDocument.load(new File("C:\\pdf-sample.pdf"));
List allPages = pddDocument.getDocumentCatalog().getAllPages();
        for (int i = 0; i < allPages.size(); i++) {
            int pageNum = i + 1;
            PDPage page = (PDPage) allPages.get(i);
            List<PDAnnotation> la = page.getAnnotations();
            if (la.size() < 1) {
                continue;
            }
            System.out.println("Page number : "+pageNum);
            for (PDAnnotation pdfAnnot: la) {
                if (pdfAnnot.getSubtype().equals("Popup")) {
                    continue;
                }

                PDFTextStripperByArea stripper = new PDFTextStripperByArea();
                stripper.setSortByPosition(true);

                PDRectangle rect = pdfAnnot.getRectangle();
                float x = rect.getLowerLeftX() - 1;
                float y = rect.getUpperRightY() - 1;
                float width = rect.getWidth();
                float height = rect.getHeight() + rect.getHeight() / 4;

                int rotation = page.findRotation();
                if (rotation == 0) {
                    PDRectangle pageSize = page.getMediaBox();
                    y = pageSize.getHeight() - y;
                }

                Rectangle2D.Float awtRect = new Rectangle2D.Float(x, y, width, height);
                stripper.addRegion(Integer.toString(0), awtRect);
                stripper.extractRegions(page);
System.out.println("------------------------------------------------------------------");
                System.out.println("Annot type = " + pdfAnnot.getSubtype());
                 System.out.println("Getting text from region = " + stripper.getTextForRegion(Integer.toString(0)) + "\n");
                 System.out.println("Getting text from comment = " + pdfAnnot.getContents());

            }
        }

      

        
        
        
      

    

code>

When reading the selected text line by line, the pdfAnnot.getRectangle () function returns the minimum area of ​​the rectangle around the text. This produces more text than is required. I have not been able to find any API for getting the exact selected text.

For example: Text extracted from test PDF file.

Anyone, anywhere, can open a PDF file . All you need is free Adobe Acrobat

Reader . Recipients of other file formats sometimes cannot open files because they

do not have applications used to create documents.

Use case 1: Read the first bold text i.e. PDF . No problem when reading text selected on one line. Correct text will be printed like this:
 Output: Retrieving text from region = " PDF "

Use case 2: Reading the second bold text, i.e. Adobe Acrobat reader that spans two lines. In this case, the extracted text when you run the above program:
Output: Retrieving text from region = " Anyone, anywhere can open a PDF file. All you need is a free Adobe Acrobat Reader. Recipients of other file formats sometimes cannot open files because what they are . "

The getRectangle () API gives the coordinates of the smallest rectangle surrounded by the selected text. Hence, it is more text than "Adobe Acrobat Reader".

• How to find the start and end points of the selection in the selection area.
• How to find out the number of lines in the extracted area.

Any help would be much appreciated.