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https://issues.apache.org/jira/browse/PDFBOX-4091?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16351769#comment-16351769
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Andreas Lehmkühler commented on PDFBOX-4091:
--------------------------------------------
{quote}It fails on 2.0.8, but succeeds in the trunk, which is surprising for
now.
{quote}
It works on 2.0.9 SNAPSHOT, I guess due to some of the improvements/fixes for
the parser
> Cannot analyze signatures : Wrong type of referenced length object COSObject
> ----------------------------------------------------------------------------
>
> Key: PDFBOX-4091
> URL: https://issues.apache.org/jira/browse/PDFBOX-4091
> Project: PDFBox
> Issue Type: Bug
> Components: Parsing
> Affects Versions: 2.0.7, 2.0.8
> Reporter: Endre Pető
> Priority: Critical
> Attachments: E-SZ00104418_20180111_040700.pdf
>
>
> Dear Colleagues,
> From one of our customer, we have got a pdf. According them and the adobe
> there is a PKCS7 signature but according the DSS 5.2 there is no. I attached
> this voucher.
> What do you think?
> One of DSS developer quickly checked their log and we got:
> e.e.e.d.p.pdfbox.PdfBoxSignatureService : Cannot analyze signatures : Wrong
> type of referenced length object COSObject
> Unknown macro: \{8, 0}
> : COSDictionary
> java.io.IOException: Wrong type of referenced length object COSObject
> : COSDictionary
> at org.apache.pdfbox.pdfparser.COSParser.getLength(COSParser.java:908)
> ~[pdfbox-2.0.7.jar!/:2.0.7]
> at org.apache.pdfbox.pdfparser.COSParser.parseCOSStream(COSParser.java:950)
> ~[pdfbox-2.0.7.jar!/:2.0.7]
> at org.apache.pdfbox.pdfparser.COSParser.parseFileObject(COSParser.java:781)
> ~[pdfbox-2.0.7.jar!/:2.0.7]
> at
> org.apache.pdfbox.pdfparser.COSParser.parseObjectDynamically(COSParser.java:742)
> ~[pdfbox-2.0.7.jar!/:2.0.7]
> at
> org.apache.pdfbox.pdfparser.COSParser.parseObjectDynamically(COSParser.java:673)
> ~[pdfbox-2.0.7.jar!/:2.0.7]
> at org.apache.pdfbox.pdfparser.COSParser.parseDictObjects(COSParser.java:633)
> ~[pdfbox-2.0.7.jar!/:2.0.7]
> at org.apache.pdfbox.pdfparser.PDFParser.initialParse(PDFParser.java:241)
> ~[pdfbox-2.0.7.jar!/:2.0.7]
> at org.apache.pdfbox.pdfparser.PDFParser.parse(PDFParser.java:276)
> ~[pdfbox-2.0.7.jar!/:2.0.7]
> at org.apache.pdfbox.pdmodel.PDDocument.load(PDDocument.java:1224)
> ~[pdfbox-2.0.7.jar!/:2.0.7]
> at org.apache.pdfbox.pdmodel.PDDocument.load(PDDocument.java:1201)
> ~[pdfbox-2.0.7.jar!/:2.0.7]
> at org.apache.pdfbox.pdmodel.PDDocument.load(PDDocument.java:1182)
> ~[pdfbox-2.0.7.jar!/:2.0.7]
> at org.apache.pdfbox.pdmodel.PDDocument.load(PDDocument.java:1165)
> ~[pdfbox-2.0.7.jar!/:2.0.7]
> at
> eu.europa.esig.dss.pdf.pdfbox.PdfBoxSignatureService.getSignatures(PdfBoxSignatureService.java:321)
> [dss-pades-5.2.jar!/:na]
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