I want to create an image from first page of PDF . I am using PDFBox . After researching in web , I have found the following snippet of code :
public class ExtractImages
{
public static void main(String[] args)
{
ExtractImages obj = new ExtractImages();
try
{
obj.read_pdf();
}
catch (IOException ex)
{
System.out.println("" + ex);
}
}
void read_pdf() throws IOException
{
PDDocument document = null;
try
{
document = PDDocument.load("H:\\ct1_answer.pdf");
}
catch (IOException ex)
{
System.out.println("" + ex);
}
List<PDPage>pages = document.getDocumentCatalog().getAllPages();
Iterator iter = pages.iterator();
int i =1;
String name = null;
while (iter.hasNext())
{
PDPage page = (PDPage) iter.next();
PDResources resources = page.getResources();
Map pageImages = resources.getImages();
if (pageImages != null)
{
Iterator imageIter = pageImages.keySet().iterator();
while (imageIter.hasNext()) {
String key = (String) imageIter.next();
PDXObjectImage image = (PDXObjectImage) pageImages.get(key);
image.write2file("H:\\image" + i);
i ++;
}
}
}
}
}
In the above code there is no error . But the output of this code is nothing . I have expected that the above code will produce a series of image which will be saved in H drive . But there is no image in that code produced from this code . Why ?
