Working with Image Placement

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Aspose.PDF for Java introduced classes called ImagePlacement, ImagePlacementAbsorber and ImagePlacementCollection which provide similar capability as the classes described above to get an image’s resolution and position in a PDF document.

  • ImagePlacementAbsorber performs image usage search as the ImagePlacement objects collection.
  • ImagePlacement provides the members Resolution and Rectangle that return actual image placement values.
package com.aspose.pdf.examples;

import com.aspose.pdf.*;

import java.awt.*;
import java.awt.image.BufferedImage;

import javax.imageio.ImageIO;

public class ExampleWorkingWithImagePlacement {

    private static String _dataDir = "/home/admin1/pdf-examples/Samples/";

    public static void WorkingWithImagePlacement() throws IOException {
        // Load the source PDF file
        Document doc = new Document(_dataDir + "ImageInformation.pdf");
        ImagePlacementAbsorber abs = new ImagePlacementAbsorber();

        // Load the contents of first page
        for (ImagePlacement imagePlacement : abs.getImagePlacements()) {
            // Get image properties
            System.out.println("image width:" + imagePlacement.getRectangle().getWidth());
            System.out.println("image height:" + imagePlacement.getRectangle().getHeight());
            System.out.println("image LLX:" + imagePlacement.getRectangle().getLLX());
            System.out.println("image LLY:" + imagePlacement.getRectangle().getLLY());
            System.out.println("image horizontal resolution:" + imagePlacement.getResolution().getX());
            System.out.println("image vertical resolution:" + imagePlacement.getResolution().getY());

            // Retrieve image with visible dimensions
            // Bitmap scaledImage;
            // Retrieve image from resources
            ByteArrayOutputStream imageStream = new ByteArrayOutputStream();
            imagePlacement.getImage().save(imageStream, ImageType.getPng());

            // Bitmap resourceImage = (Bitmap)Bitmap.FromStream(imageStream);
            BufferedImage resourceImage = ByteArrayInputStream(imageStream.toByteArray()));

            // Create bitmap with actual dimensions
            BufferedImage scaledImage = toBufferedImage( 
            resourceImage.getScaledInstance((int) imagePlacement.getRectangle().getWidth(),
                    (int) imagePlacement.getRectangle().getHeight(), java.awt.Image.SCALE_SMOOTH));

            ByteArrayOutputStream baos = new ByteArrayOutputStream();
            ImageIO.write(scaledImage, "jpg", baos);
            ByteArrayInputStream fis = new ByteArrayInputStream(baos.toByteArray());

    public static BufferedImage toBufferedImage(java.awt.Image img) {
        if (img instanceof BufferedImage) {
            return (BufferedImage) img;

        // Create a buffered image with transparency
        BufferedImage bimage = new BufferedImage(img.getWidth(null), img.getHeight(null), BufferedImage.TYPE_INT_ARGB);

        // Draw the image on to the buffered image
        Graphics2D bGr = bimage.createGraphics();
        bGr.drawImage(img, 0, 0, null);

        // Return the buffered image
        return bimage;