Is there a simple example somewhere to find all images in a PDF and
get them as a byte array? I want to extract them for the purpose of
barcode scanning.
I have something like this:
final PdfReader reader = new PdfReader(pdfBytes);
PdfDictionary pg = reader.getPageN(1);
PdfDictionary res = (PdfDictionary)
PdfReader.getPdfObject(pg.get(PdfName.RESOURCES));
PdfDictionary xobj = (PdfDictionary)
PdfReader.getPdfObject(res.get(PdfName.XOBJECT));
if (xobj != null) {
for (Iterator it = xobj.getKeys().iterator();
it.hasNext();) {
PdfObject obj = xobj.get((PdfName)
it.next());
if (obj.isIndirect()) {
PdfDictionary tg =
(PdfDictionary) PdfReader.getPdfObject(obj);
PdfName type = (PdfName)
PdfReader.getPdfObject(tg.get(PdfName.SUBTYPE));
if (PdfName.IMAGE.equals(type))
{
System.out.println("FOUND AN IMAGE");
}
}
}
}
..and I print the FOUND AN IMAGE, but am not clear on how to actually
get the bytes that represent it? Any pointers?
Thanks in advance,
Davis
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