Java/PDF RTF/Image Manipulation

Getting RawData From Image File

   <source lang="java">

import java.io.FileOutputStream; import java.io.RandomAccessFile; import com.lowagie.text.Document; import com.lowagie.text.Image; import com.lowagie.text.pdf.PdfWriter; public class RawDataFromImageFilePDF {

 public static void main(String[] args) {
   Document document = new Document();
   try {
     PdfWriter.getInstance(document, new FileOutputStream("RawDataFromImageFilePDF.pdf"));
     document.open();
     
     RandomAccessFile rf = new RandomAccessFile("logo.png", "r");
     int size = (int) rf.length();
     byte imext[] = new byte[size];
     rf.readFully(imext);
     rf.close();
     
     Image img1 = Image.getInstance(imext);
     img1.setAbsolutePosition(50, 500);
     document.add(img1);
   } catch (Exception e) {
     System.err.println(e.getMessage());
   }
   document.close();
 }

}

      </source>
   
  
 
  

Getting RawData From Image File and Manipulation

   <source lang="java">

import java.io.FileOutputStream; import java.io.RandomAccessFile; import com.lowagie.text.Document; import com.lowagie.text.Image; import com.lowagie.text.pdf.PdfWriter; public class RawDataFromImageFileAndManipulationPDF {

 public static void main(String[] args) {
   Document document = new Document();
   try {
     PdfWriter.getInstance(document, new FileOutputStream("RawDataFromImageFileAndManipulationPDF.pdf"));
     document.open();
     
     RandomAccessFile rf = new RandomAccessFile("logo.png", "r");
     int size = (int) rf.length();
     byte imext[] = new byte[size];
     rf.readFully(imext);
     rf.close();
     
     for(int i=0;i<imext.length;i++){
       imext[i]= (byte)(imext[i]+3);
     }
     Image img1 = Image.getInstance(100, 100, 3, 8, imext);
     img1.setAbsolutePosition(200, 200);
     document.add(img1);
     
   } catch (Exception e) {
     System.err.println(e.getMessage());
   }
   document.close();
 }

}

      </source>