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https://issues.apache.org/jira/browse/PDFBOX-3538?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15596224#comment-15596224
 ] 

Tilman Hausherr commented on PDFBOX-3538:
-----------------------------------------

The xref table has this
{code}
0000000-21 00000 n 
{code}
replacing the "-" with "0" makes it a correct PDF.

The alternative would be to rebuild the xref table, the thing we did for files 
that were cut off.

> IOException over NumberFormatException on a valid PDF
> -----------------------------------------------------
>
>                 Key: PDFBOX-3538
>                 URL: https://issues.apache.org/jira/browse/PDFBOX-3538
>             Project: PDFBox
>          Issue Type: Bug
>          Components: Parsing
>         Environment: Windows 7 x64, JVM 1.8.0_101
>            Reporter: Seva Alekseyev
>         Attachments: PB_AGAP001539_Graphical.pdf
>
>
> On the attached document, which loads and displays with Adobe Reader fine, 
> PDDocument.load() throws the following exception:
> java.io.IOException: java.lang.NumberFormatException: For input string: 
> "0000000-21"
>       at 
> org.apache.pdfbox.pdfparser.COSParser.parseXrefTable(COSParser.java:2017)
>       at org.apache.pdfbox.pdfparser.COSParser.parseXref(COSParser.java:224)
>       at 
> org.apache.pdfbox.pdfparser.PDFParser.initialParse(PDFParser.java:194)
>       at org.apache.pdfbox.pdfparser.PDFParser.parse(PDFParser.java:252)
>       at org.apache.pdfbox.pdmodel.PDDocument.load(PDDocument.java:957)
>       at org.apache.pdfbox.pdmodel.PDDocument.load(PDDocument.java:913)
>       at org.apache.pdfbox.pdmodel.PDDocument.load(PDDocument.java:861)
>       at Temp.PDFTemp.App.main(App.java:19)
> Caused by: java.lang.NumberFormatException: For input string: "0000000-21"
>       at 
> java.lang.NumberFormatException.forInputString(NumberFormatException.java:65)
>       at java.lang.Long.parseLong(Long.java:589)
>       at java.lang.Long.parseLong(Long.java:631)
>       at 
> org.apache.pdfbox.pdfparser.COSParser.parseXrefTable(COSParser.java:2010)
>       ... 7 more



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