Java/PDF RTF/PDF Read

Add Page Numbers to Existing PDF document

   <source lang="java">

import java.io.FileOutputStream; import com.lowagie.text.Element; import com.lowagie.text.pdf.BaseFont; import com.lowagie.text.pdf.PdfContentByte; import com.lowagie.text.pdf.PdfReader; import com.lowagie.text.pdf.PdfStamper; public class AddPageNumbersToExistingPageNumberPDF {

 public static void main(String[] args) {
   try {
     PdfReader reader = new PdfReader("YourOwnPDF.pdf");
     int n = reader.getNumberOfPages();
     PdfStamper stamp = new PdfStamper(reader, new FileOutputStream("AddPageNumbersToExistingPageNumberPDF.pdf"));
     int i = 0;
     PdfContentByte over;
     BaseFont bf = BaseFont.createFont(BaseFont.HELVETICA, BaseFont.WINANSI, BaseFont.EMBEDDED);
     while (i < n) {
       i++;
       over = stamp.getOverContent(i);
       over.beginText();
       over.setFontAndSize(bf, 18);
       over.setTextMatrix(30, 30);
       over.showText("page " + i);
       over.setFontAndSize(bf, 32);
       over.showTextAligned(Element.ALIGN_LEFT, "DUPLICATE", 230, 430, 45);
       over.endText();
     }
     stamp.close();
   } catch (Exception de) {
     de.printStackTrace();
   }
 }

}

      </source>
   
  
 
  

Reading Your Own PDF File

   <source lang="java">

import java.io.FileOutputStream; import com.lowagie.text.Document; import com.lowagie.text.Rectangle; import com.lowagie.text.pdf.BaseFont; import com.lowagie.text.pdf.PdfContentByte; import com.lowagie.text.pdf.PdfImportedPage; import com.lowagie.text.pdf.PdfReader; import com.lowagie.text.pdf.PdfWriter; public class ReadYourOwnPDFFile {

   public static void main(String[] args) {
       try {
           PdfReader reader = new PdfReader("YourOwnPDF.pdf");
           int n = reader.getNumberOfPages();
           // we retrieve the size of the first page
           Rectangle psize = reader.getPageSize(1);
           System.out.println(reader.getPdfVersion());
           System.out.println(reader.getFileLength());
           System.out.println(psize.height());
           System.out.println(psize.width());
       }
       catch (Exception de) {
           de.printStackTrace();
       }
   }

}

      </source>
   
  
 
  

Reads the pages of an existing PDF file and puts 2 pages from the existing doc into one of the new doc

   <source lang="java">

import java.io.FileOutputStream; import com.lowagie.text.Document; import com.lowagie.text.Rectangle; import com.lowagie.text.pdf.BaseFont; import com.lowagie.text.pdf.PdfContentByte; import com.lowagie.text.pdf.PdfImportedPage; import com.lowagie.text.pdf.PdfReader; import com.lowagie.text.pdf.PdfWriter; public class TwoOnOnePDF {

 public static void main(String[] args) {
   System.out.println("");
   try {
     PdfReader reader = new PdfReader("YourOwnPDF.pdf");
     int n = reader.getNumberOfPages();
     Rectangle psize = reader.getPageSize(1);
     float width = psize.height();
     float height = psize.width();
     Document document = new Document(new Rectangle(width, height));
     PdfWriter writer = PdfWriter.getInstance(document, new FileOutputStream("TwoOnOnePDF.pdf"));
     document.open();
     PdfContentByte cb = writer.getDirectContent();
     document.newPage();
     PdfImportedPage page1 = writer.getImportedPage(reader, 1);
     cb.addTemplate(page1, .5f, 0, 0, .5f, 60, 120);
     
     document.close();
   } catch (Exception de) {
     de.printStackTrace();
   }
 }

}

      </source>