@SuppressWarnings("unchecked")
public static void main_3(String[] args) throws IOException {
PDDocument doc = PDDocument.load(iconFile);
List<PDPage> pages = doc.getDocumentCatalog().getAllPages();
List<COSObject> objects = doc.getDocument().getObjects();
for (COSObject cosObject : objects) {
COSBase cosbase = cosObject.getObject();
if (cosObject.getObject() instanceof COSStream) {
COSStream cosstream = (COSStream) cosbase;
COSBase filter = cosstream.getDictionaryObject(COSName.FILTER);
COSBase subtype = cosstream.getDictionaryObject(COSName.SUBTYPE);
if (subtype != null && subtype.equals(COSName.IMAGE)) {
System.out.println(filter);
InputStream filtered = cosstream.getFilteredStream();
// PDStream stream = new PDStream(costream);
System.out.println(Hex.encodeHex(IOUtils.toByteArray(filtered)));
}
}
}
for (PDPage pdPage : pages) {
PDResources resources = pdPage.getResources();
Map<String, PDXObject> images = resources.getXObjects();
Set<String> keys = images.keySet();
for (String key : keys) {
PDXObject image = images.get(key);
byte[] imgData = image.getPDStream().getByteArray();
System.out.println(Hex.encodeHex(imgData));
}
}
}
protected PDFunction getTintTransformer(COSStream xstream) throws IOException {
COSBase cs = xstream.getDictionaryObject(COSName.COLORSPACE, COSName.CS);
if (cs == null) {
return null;
}
COSArray array = getCOSArray(cs);
if (array == null) {
return null;
}
String name = ((COSName) array.getObject(0)).getName();
if (name.equals("DeviceN")) {
PDFunction function = PDFunction.create(array.getObject(3));
return function;
}
return null;
}
/**
* This will get an object from this streams dictionary and dereference it if necessary.
*
* @param key The key to the object.
* @return The dictionary object with the key or null if one does not exist.
*/
public COSBase getDictionaryObject(COSName key) {
return firstStream.getDictionaryObject(key);
}
