Measure Of Width
In this section, you will learn how we can
measure the width of the page. iText api provides a getWidthPoint()
to know the width of the page. The width will be in centimeters or inches.
Code Description:
getWidthPoint():
If we have a Chunk and we want to know it's width on a page then we can
use the method getWidthPoint(). It gives us the width in
points and we will have to do maths to know the width in inches or
centimeters.
setHorizontalScaling(float scale):
With the method setHorizontalScaling(float scale), we can
shrink (scale < 1.0f) or expand (scale > 1.0f) the Chunk. In the
example we first print the Chunk in its actual size, then we print it
twice at half its size (scale = 0.5f).
The code of the program is given below:
import java.io.FileOutputStream;
import java.io.IOException;
import com.lowagie.text.Chunk;
import com.lowagie.text.Document;
import com.lowagie.text.DocumentException;
import com.lowagie.text.Paragraph;
import com.lowagie.text.pdf.PdfWriter;
public class MeasureOfWidth {
public static void main(String[] args)throws Exception {
System.out.println("Example of measure Width of the chunk");
Document document = new Document();
PdfWriter.getInstance(document,new
FileOutputStream("Width.pdf"));
document.open();
Chunk c = new Chunk("Rose India");
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.");
document.add(p);
document.add(c);
document.add(Chunk.NEWLINE);
c.setHorizontalScaling(0.5f);
document.add(c);
document.add(c);
document.close();
}
}
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The output of the program is given below: 
Download
this example.
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