Extract Images from PDF

Each page in PDF document contain resources (images, forms and fonts). We can access to these resources by calling getResources method. Class Resources contain XImageCollection and we can get list of images by calling getImages method.

Thus to extract image from page, we need to get reference to the page, next to the page resources and last to the image collection. Particular image we can extract for example by index.

The image’s index returns an XImage object. This object provides a Save method which can be used to save the extracted image. The following code snippet shows how to extract images from a PDF file.

public void extractImage () {
       // Open document
       try {
           document=new Document(inputStream);
       } catch (Exception e) {
           resultMessage.setText(e.getMessage());
           return;
       }

       com.aspose.pdf.Page page=document.getPages().get_Item(1);
       com.aspose.pdf.XImageCollection xImageCollection=page.getResources().getImages();
       // Extract a particular image
       com.aspose.pdf.XImage xImage=xImageCollection.get_Item(1);
       File file=new File(fileStorage, "extracted-image.jpeg");
       try {
           java.io.FileOutputStream outputImage=new java.io.FileOutputStream(file.toString());
           // Save output image
           xImage.save(outputImage, ImageType.getJpeg());
           outputImage.close();
       } catch (java.io.IOException e) {
           resultMessage.setText(e.getMessage());
           return;
       }
       resultMessage.
         }