Re: Problems extracting images (with example code)

[Andreas Lehmkühler]

Hi Alan,

the JPX-format [1] isn't supported by pdfbox as a stream filter.

Andreas Lehmkühler


[1] http://en.wikipedia.org/wiki/JPEG_2000

Thomas, Alan A CIV NSWCDD, K71 schrieb:

        I set up PDFBox (Apache pre-release version 0.8.0) and other
required libraries and compiled it.  I used the ExtractImages.java
example provided with it on a PDF file.  However, it produced a bunch of
empty files, and the following error is representative of many in the

logfile:

Jun 14, 2009 11:32:38 PM
org.apache.pdfbox.pdmodel.graphics.xobject.PDPixelMap getRGBImage
SEVERE: java.io.IOException: Unknown stream filter:COSName{JPXDecode}
 at
org.apache.pdfbox.filter.FilterManager.getFilter(FilterManager.java:102)
org.apache.pdfbox.cos.COSStream.doDecode(COSStream.java:249)
org.apache.pdfbox.cos.COSStream.doDecode(COSStream.java:221)
org.apache.pdfbox.cos.COSStream.getUnfilteredStream(COSStream.java:156)
org.apache.pdfbox.pdmodel.common.PDStream.createInputStream(PDStream.jav
a:211)
org.apache.pdfbox.pdmodel.common.PDStream.getByteArray(PDStream.java:465
)
org.apache.pdfbox.pdmodel.graphics.xobject.PDPixelMap.getRGBImage(PDPixe
lMap.java:129)
org.apache.pdfbox.pdmodel.graphics.xobject.PDPixelMap.write2OutputStream
(PDPixelMap.java:198)
org.apache.pdfbox.pdmodel.graphics.xobject.PDXObjectImage.write2file(PDX
ObjectImage.java:108)
extractimages.ExtractImages.extractImages(ExtractImages.java:147)
extractimages.ExtractImages.main(ExtractImages.java:57)

      Could someone give me a pointer as to what might be the problem?

Thanks, Alan