Hello to itext user,
i have a problem to replace an jpeg image inside an existing pdf document.
First i check if an xobject is inside the pdf document, if i found one i get
the PRStream from this object.
Then i create an PdfImageObject read the data and save this to the filesystem
(this image i can open with photoshop etc.)
Then i clear the prstream and read the save image to replace (for test i use
the image saved before, so this is exact the same image),
i do all necessary settings like before, but the saved PDF document doesn't
show the image.
I got an error from acrobat "not enough memory" and when i try to open this
saved image i got an error from photoshop "wrong jpeg mark found".
any idea's?
here is the code snippet:
stream.clear();
stream.put(PdfName.TYPE, PdfName.XOBJECT);
stream.put(PdfName.SUBTYPE, PdfName.IMAGE);
stream.put(PdfName.WIDTH, new PdfNumber(replaceImage.getWidth()));
stream.put(PdfName.HEIGHT, new PdfNumber(replaceImage.getHeight()));
switch (replaceImage.type())
{
case Image.JPEG:
switch (replaceImage.getColorspace())
{
case 1:
stream.put(PdfName.COLORSPACE, PdfName.DEVICEGRAY);
break;
case 3:
stream.put(PdfName.COLORSPACE, PdfName.DEVICERGB);
break;
default:
stream.put(PdfName.COLORSPACE, PdfName.DEVICECMYK);
if (replaceImage.isInverted())
{
stream.put(PdfName.DECODE, new PdfLiteral("[1 0 1 0 1 0
1 0]"));
}
}
stream.put(PdfName.BITSPERCOMPONENT, new PdfNumber(8));
stream.put(PdfName.LENGTH, new PdfNumber(image.length));
stream.setData(image);
stream.put(PdfName.FILTER, PdfName.DCTDECODE);
}
with regards
Thomas Kübler
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