What makes you think that all images in a PDF are JPEGs? What makes you think
that all images in a PDF can be represented w/o modification as a standard
raster format? What makes you think that all images in a PDF are raster (vs.
vector)?
Basically, you have a limited frame of understanding about images in PDF - and
you need to read up on the subject (a lot!) to understand why your methodology
is flawed...
Leonard
From: rajasekhar.pal...@accenture.com [mailto:rajasekhar.pal...@accenture.com]
Sent: Tuesday, August 25, 2009 5:00 AM
To: itext-questions@lists.sourceforge.net
Subject: [iText-questions] Images extraction.
Hi Team,
I am trying to get the images from PDF file, I am using he below API to do it
but I am getting 'Invalid Image'
PdfReader chartReader = new PdfReader("C:\\Raj\\Test\\signtest.pdf");
for (int i = 0; i < chartReader.getXrefSize(); i++) {
PdfObject pdfobj = chartReader.getPdfObject(i);
if (pdfobj != null && pdfobj.isStream()) {
PdfStream stream = (PdfStream) pdfobj;
PdfObject pdfsubtype = stream.get(PdfName.SUBTYPE);
//System.out.println("Stream subType: " +
pdfsubtype);
if (pdfsubtype != null &&
pdfsubtype.toString().equals(PdfName.IMAGE.toString())) {
writeToFile(stream, i);
}
}
}
private static void writeToFile(PdfStream stream, int i) throws IOException {
byte[] image = PdfReader.getStreamBytesRaw((PRStream) stream);
System.out.println("Image bytes length:"+image.length);
//byte[] image = PdfReader.getStreamBytes((PRStream) stream);
FileOutputStream fw = new
FileOutputStream("C:\\Raj\\Test\\beastpics\\" + i + ".jpg");
fw.write(image);
fw.flush();
fw.close();
}
Can you please help to fix the problem? Please find the attached pdf file and
output images file.
Thanks for your support.
Rajasekhar
BestBuy Accenture IDC | Desk +91 80 418 63392 | Mobile +91 94482 26670 | AIM:
paletiraja
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