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From Darcy Dechene <darcy.dech...@gmail.com>
Subject PDFToImage results in a missing image
Date Thu, 26 Sep 2013 15:37:22 GMT
Hi,

I'm using PDFToImage  to convert PDFs to PNGs (version 1.8.2).   When
running the conversion for a particular PDF, I get the below Exception and
part of the PDF (an image) is missing in the resulting PNG.

Looking at the Exception there is probably a TIFF (contained in the PDF)
that is somewhat malformed. However, I'm wondering if there is some sort of
work around that can be used, to deal with the problem?

I found this realy old discussion (from 2008) with a similar issue:
http://itext-general.2136553.n4.nabble.com/Invalid-TIFF-Invalid-code-encountered-while-decoding-2D-group-4-compressed-data-td2159262.html

Exception:
java.lang.RuntimeException: Invalid code encountered while decoding 2D
group 4 compressed data.
at
org.apache.pdfbox.filter.TIFFFaxDecoder.decodeT6(TIFFFaxDecoder.java:1073)
at
org.apache.pdfbox.filter.CCITTFaxDecodeFilter.decode(CCITTFaxDecodeFilter.java:126)
at org.apache.pdfbox.cos.COSStream.doDecode(COSStream.java:295)
at org.apache.pdfbox.cos.COSStream.doDecode(COSStream.java:245)
at org.apache.pdfbox.cos.COSStream.getUnfilteredStream(COSStream.java:172)
at
org.apache.pdfbox.pdmodel.graphics.xobject.PDCcitt.getRGBImage(PDCcitt.java:155)
at org.apache.pdfbox.util.operator.pagedrawer.Invoke.process(Invoke.java:83)
at
org.apache.pdfbox.util.PDFStreamEngine.processOperator(PDFStreamEngine.java:554)
at
org.apache.pdfbox.util.PDFStreamEngine.processSubStream(PDFStreamEngine.java:268)
at
org.apache.pdfbox.util.PDFStreamEngine.processSubStream(PDFStreamEngine.java:235)
at
org.apache.pdfbox.util.PDFStreamEngine.processStream(PDFStreamEngine.java:215)
at org.apache.pdfbox.pdfviewer.PageDrawer.drawPage(PageDrawer.java:125)
at org.apache.pdfbox.pdmodel.PDPage.convertToImage(PDPage.java:781)
at org.apache.pdfbox.util.PDFImageWriter.writeImage(PDFImageWriter.java:133)
at org.apache.pdfbox.PDFToImage.main(PDFToImage.java:244)
at org.apache.pdfbox.PDFBox.main(PDFBox.java:96)

I've attached the PDF and PNG, but I'm not sure if they will come through.

Thanks,
Darcy

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