Hi Bruno/Leo,
It's urgent task that I need to complete in coming two days :(
I need to extract all format image from pdf document.
I tried with Bruno suggestion ImageXRefViewer.java class.
PdfReader chartReader = new PdfReader("MyPdf.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())) {
byte[] image = PdfReader.getStreamBytesRaw((PRStream)
stream);
Image image = Image.getInstance(imgBytes);
using this image object I need to retrieve the image
height,width and dpi i.e. image.getDpiX();
Mike Marchywka-2 wrote:
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>> Date: Mon, 30 Nov 2009 04:19:34 -0800
>> From: j
>> To: itext-questions@lists.sourceforge.net
>> Subject: Re: [iText-questions] extract the stamped image from pdf
>>
>>
>> Hi,
>> ImageXRefViewer will help us to extract images input stream from pdf
>> document.
>> After getting the image input stream I am able to create the instance of
>> only jpeg images are embedded in pdf document.
>>
>> Image image = Image.getInstance(imgBytes);
>>
>> For other formated images getting the error massage.
>>
>> java.io.IOException: The byte array is not a recognized imageformat.
>
> Bruno or Leo may have an answer but it may also help if you can provide
> the first few bytes of your buffer to get
> some indication of what the image really is or if something
> else happened. I've gotten this in other contexts
> and the "image" was ascii html giving a human readable
> 404 response. Not sure what could happen in pdf. I've
> also had cases where the built-in image stuff isn't enough
> and exotic images types require you to find alt
> libraries.
>
>>
>> Please need your help to extract all formats images are
>> embedded/available
>> in pdf document.
>>
>>
>>
>> Bruno Lowagie (iText) wrote:
>>>
>>> jerry wrote:
>>>
>>>>hi,
>>>>
>>>> how to extract the stamped images from pdf using itext.i will be
>>>> very
>>>>thankfull to u if u Provide me a sample code.forgive me if this is a
>> repeated
>>>>question.
>>>>
>>> Not sure what you mean by stamped images.
>>> Images added with PdfStamper, yeah?
>>> Take a look at the ImageXRefViewer plug-in in the toolbox.
>>> http://itext.ugent.be/library/src/com/lowagie/tools/plugins/
>>> It has some code in the execute method that can be used
>>> to read images from PDF files.
>>> br,
>>> Bruno
>>>
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>>
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>>
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