itext-function-control java-pdf java-print

import com.itextpdf.text.Anchor;
import com.itextpdf.text.BadElementException;
import com.itextpdf.text.BaseColor;
import com.itextpdf.text.Chapter;
import com.itextpdf.text.Document;
import com.itextpdf.text.DocumentException;
import com.itextpdf.text.Element;
import com.itextpdf.text.Font;
import com.itextpdf.text.List;
import com.itextpdf.text.ListItem;
import com.itextpdf.text.Paragraph;
import com.itextpdf.text.Phrase;
import com.itextpdf.text.Chunk;
import com.itextpdf.text.Section;
import com.itextpdf.text.pdf.PdfPCell;
import com.itextpdf.text.pdf.PdfPTable;
import com.itextpdf.text.pdf.PdfWriter;
import com.itextpdf.text.PageSize;

public class MainClass {

  public static void main(String[] args) throws Exception {
    Document document = new Document();


        Document document = new Document( PageSize.A4, 20, 20, 20, 20 );
        PdfWriter.getInstance( document, new FileOutputStream( "HelloWorld.pdf" ) );

    PdfWriter.getInstance(document, new FileOutputStream("2.pdf"));
    document.open();
    Chunk c = new Chunk("this is a test");
    float w = c.getWidthPoint();
    Paragraph p = new Paragraph("The width of the chunk: '");
    p.add(c);
    p.add("' is ");
 
    p.add(String.valueOf(w));
    p.add(" points or ");
    p.add(String.valueOf(w / 72f));
    p.add(" inches or ");
    p.add(String.valueOf(w / 72f * 2.54f));
    p.add(" cm.");
    document.add(p);
    document.add(Chunk.NEWLINE);  // New Line new space line





    document.add(c);
document.add(table);


table = new PdfPTable(3);  ////////////////////////////// columns of Report
table.setWidths(new int[]{30,850,260}); ////////////////////// column widths
table.setWidthPercentage(100); //////////////////////////////////// tables width 100%
table.getDefaultCell().setBorder(0); ////////////////////////////// border-width to 0

c1 = new PdfPCell(new Phrase("3", font8));
c1.setBorder(0);
c1.setHorizontalAlignment(Element.ALIGN_LEFT);
table.addCell(c1); //1
c1 = new PdfPCell(new Phrase("(a) H.K.Identity Card Number : ", font8));
c1.setBorder(0);
c1.setHorizontalAlignment(Element.ALIGN_LEFT);
table.addCell(c1); //2
c1 = new PdfPCell(new Phrase(dRaws[i][1], font8));
c1.setBorder(0);
c1.setHorizontalAlignment(Element.ALIGN_RIGHT);
table.addCell(c1);

    document.close();
  }
}



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public static void main(String args[]) {
    try {
        // create a new document
        Document document = new Document( PageSize.A4, 20, 20, 20, 20 );
        PdfWriter.getInstance( document, new FileOutputStream( "HelloWorld.pdf" ) );

        document.open();

        document.add( new Paragraph( "Hello, World!" ) );
        document.add( new Paragraph( "Hello, World!" ) );

        // add a couple of blank lines
        document.add( Chunk.NEWLINE );
        document.add( Chunk.NEWLINE );

        // add one more line with text
        document.add( new Paragraph( "Hello, World!" ) );

        document.close();
    }
    catch (Exception e) {
        e.printStackTrace();
    }
}