Hi,
Thanks for the script & reference to PDF standard.
Watermarks are indeed annotations - see page 410 at the bottom:
http://www.adobe.com/devnet/acrobat/pdfs/PDF32000_2008.pdf
The code I got to so far is, but the use of stamper should be avoided:
import com.itextpdf.text.DocumentException;
import com.itextpdf.text.pdf.*;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.util.Map;
import java.util.Set;
public class hasWatermark {
public static void main(String[] args) throws FileNotFoundException,
DocumentException, IOException {
PdfReader reader = new PdfReader("D:\\Annotations.pdf");
if (isWatermarked(reader))
System.out.println("is marked");
else
System.out.println("is not marked");
reader.close();
}
public static boolean isWatermarked(PdfReader reader) throws
DocumentException, IOException{
PdfStamper stamper = new PdfStamper(reader, new
FileOutputStream("d:\\text.pdf"));
Map<String, PdfLayer> layers = stamper.getPdfLayers();
boolean wm=false;
if (!layers.isEmpty()) {
Set<String> keys = layers.keySet();
for (String key : keys) {
if(key.toString().equalsIgnoreCase("watermark"))
wm=true;
System.out.println("Layer name: " + key);
//PdfLayer layer = layers.get(key);
// do stuff with layer...
}
}
stamper.close();
return wm;
}
}
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