Spring Boot: Adding pdf pages Dynamically using PDFBox

private float addParagraph(PDPageContentStream contentStream, float width, float sx, float sy, String text, boolean justify, float initY, float pageHeight, PDDocument document) throws IOException {
    ...
            contentStream.endText();
            contentStream.close();
            contentStream = new PDPageContentStream(document,nextPage);
            contentStream.beginText();
    ...
    return (lines.size()*(7+3));
}