Java Programing laungage

Here we are creating a PDF document with different pages that have different margins. To set the margins we are using the setMargins() method. Here we are using an other method setMarginMirroring(true). This is used to set the mirror of previous page margins at next page. To create a PDF using java you need iText API. You can download from website. This is an open source jar. Then you have to set class path of this iText jar.

There are basic five steps to create PDF:

Step1: Here we are creating an object of a document.

Document document = new Document(PageSize.A5, 36, 72, 108, 180);

Step2: Here we are creating a writer that listens to the document and directs a PDF-stream to a file.

PdfWriter.getInstance(document, new FileOutputStream( "MarginsInPDF.pdf"));

Step3: Here we are opening the document.

document.open();

Step4: Here we are adding the paragraph in PDF document.Here margins are default.

document.add(new Paragraph("The left margin of this document is 36pt (0.5 inch); the right margin 72pt (1 inch); the top margin 108pt (1.5 inch); the bottom margin 180pt (2.5 inch)."));

document.add(paragraph);
the bottom margin 180pt (2.5 inch). "));

Here we are setting the merging.

document.setMargins(180, 108, 72, 36);
document.add(new Paragraph(
"Now we change the margins. You will see the effect on the next page."));
document.add(paragraph);

Here we are setting the margin mirror true. So that the margins will be mirrored on next page.

document.setMarginMirroring(true);
document .add(new Paragraph( 
"Starting on the next page, the margins will be mirrored."));
document.add(paragraph);

Step5: Close the document

document.close();

Example:

package com.itext.pdf.example.r4r;
/These are package of java.io.*
import java.io.FileOutputStream;
import java.io.IOException;
/These are package of iText API 
import com.lowagie.text.Document;
import com.lowagie.text.DocumentException;
import com.lowagie.text.PageSize;
import com.lowagie.text.Paragraph;
import com.lowagie.text.pdf.PdfWriter;

/***This is example of set margins of a PDF.
 */
public class MarginsInPDF {
/*** Here we are creating  a PDF document with different pages 
that have different margins.
 * To set the margins we are using the setMargins() method.
 * Here we are using an other method setMarginMirroring(true).
   This is used to set the mirrore of previous page margins at next page
 */
public static void main(String[] args) {
System.out.println("Set margins in PDF pages.");
/ Step1:Here we are creating an object of a document.
Document document = new Document(PageSize.A5, 36, 72, 108, 180);
try {
/ Step2:Here we are creating a writer that listens to 
       the document and directs a PDF-stream to a file.

PdfWriter.getInstance(document, new FileOutputStream(
	"MarginsInPDF.pdf"));

/ Step3:Here we are opening the document.
document.open();

/ Step4:Here we are adding the paragraph in PDF document.
   Here margins are default.
			
 document.add(new Paragraph(
	"The left margin of this document is 36pt (0.5 inch); 
    the right margin 72pt (1 inch); the top margin 108pt (1.5 inch); 
	the bottom margin 180pt (2.5 inch)."));

Paragraph paragraph = new Paragraph();
document.add(paragraph);
/Here we are setting the margings.
document.setMargins(180, 108, 72, 36);
document.add(new Paragraph(
"Now we change the margins.You will see the effect on the next page."));
document.add(paragraph);
/Here we are setting the margin mirror true.So that the 
margins will be mirrored.

document.setMarginMirroring(true);
document.add(new Paragraph(
"Starting on the next page,the margins will be mirrored."));
document.add(paragraph);
} catch (DocumentException de) {
		System.err.println(de.getMessage());
} catch (IOException ioe) {
		System.err.println(ioe.getMessage());
}

/ Step5:We are closing the document
document.close();
	}
}