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https://issues.apache.org/jira/browse/PDFBOX-2929?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14692512#comment-14692512
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John Hewson commented on PDFBOX-2929:
-------------------------------------

Good news: simply skipping the rounding when the value is zero avoids the crash.

> "Illegal instruction: 4" with PDFToImage
> ----------------------------------------
>
>                 Key: PDFBOX-2929
>                 URL: https://issues.apache.org/jira/browse/PDFBOX-2929
>             Project: PDFBox
>          Issue Type: Bug
>          Components: Rendering
>    Affects Versions: 2.0.0
>         Environment: JDK 1.8.0_45, 64-bit, Mac OS X
>            Reporter: Tilman Hausherr
>             Fix For: 2.0.0
>
>         Attachments: PDFBOX-2929.pdf, crash_dump.crash
>
>
> Attached file (page 4 from 
> http://www.researchgate.net/publication/237090017_Paper_110 ) crashes JDK 
> when rendered with 73, 100, 200 or 400 dpi but not with 72 or 300 dpi.



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