[
https://issues.apache.org/jira/browse/PDFBOX-2513?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14229131#comment-14229131
]
Tilman Hausherr commented on PDFBOX-2513:
-----------------------------------------
1) Adobe Reader 11 produces an error too.
2) I remember that I had written a little tool to create TIFF files from raw
CCITT G4 compressed data. With that, I used JAI as it is distributed to read
that file, and got an error.
Then I looked at the hex view of object 475. It is very different to other
image objects with 1 row. There are lots of 00 and 20 which is unusual for a
compressed stream.
In the tests for PDFBOX-457, I had the problem of "6 extra bytes". Here, there
are 0x1c4 extra bytes at the beginning. After skipping these, I am able to read
the file with JAI.
3) There is another problem of not throwing an exception. If we swallow the
exception, then the command line utility wouldn't show details on what
happened. We would have to expand the command line utility to show the
exception, or write another utility that does so (like Ralf has probably done)
to display the exception. Or maybe include the stack trace in the XML.
> false negative? RuntimeException: EOL encountered in white run
> --------------------------------------------------------------
>
> Key: PDFBOX-2513
> URL: https://issues.apache.org/jira/browse/PDFBOX-2513
> Project: PDFBox
> Issue Type: Bug
> Components: Preflight
> Affects Versions: 2.0.0
> Environment: java7 deb7
> Reporter: Ralf Hauser
> Labels: CCITTFaxDecode
> Attachments: 2513.pdf, patch2513.txt, patch2513a.txt
>
>
> java.lang.RuntimeException: EOL encountered in white run.
> at
> org.apache.pdfbox.filter.ccitt.TIFFFaxDecoder.decodeWhiteCodeWord(TIFFFaxDecoder.java:1168)
> at
> org.apache.pdfbox.filter.ccitt.TIFFFaxDecoder.decodeT6(TIFFFaxDecoder.java:980)
> at
> org.apache.pdfbox.filter.CCITTFaxFilter.decode(CCITTFaxFilter.java:95)
> at org.apache.pdfbox.cos.COSStream.doDecode(COSStream.java:386)
> at org.apache.pdfbox.cos.COSStream.doDecode(COSStream.java:335)
> at org.apache.pdfbox.cos.COSStream.getDecodeResult(COSStream.java:290)
> at
> org.apache.pdfbox.pdmodel.graphics.image.PDImageXObject.<init>(PDImageXObject.java:115)
> at
> org.apache.pdfbox.pdmodel.graphics.PDXObject.createXObject(PDXObject.java:65)
> at
> org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validateXObjects(ResourcesValidationProcess.java:285)
> at
> org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validate(ResourcesValidationProcess.java:80)
> at
> org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:81)
> at
> org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:54)
> at
> org.apache.pdfbox.preflight.process.reflect.SinglePageValidationProcess.validateResources(SinglePageValidationProcess.java:167)
> at
> org.apache.pdfbox.preflight.process.reflect.SinglePageValidationProcess.validate(SinglePageValidationProcess.java:82)
> at
> org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:81)
> at
> org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:54)
> at
> org.apache.pdfbox.preflight.process.PageTreeValidationProcess.validatePage(PageTreeValidationProcess.java:56)
> at
> org.apache.pdfbox.preflight.process.PageTreeValidationProcess.validate(PageTreeValidationProcess.java:45)
> at
> org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:81)
> at
> org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:118)
> at
> org.apache.pdfbox.preflight.PreflightDocument.validate(PreflightDocument.java:168)
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
