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https://issues.apache.org/jira/browse/FOP-2273?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13707059#comment-13707059
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Luis Bernardo commented on FOP-2273:
------------------------------------

I confirm the issue with Adobe Reader and I think the suggested fix is 
appropriate too.
                
> Stroke miter limit is not clamped when writing PDFs
> ---------------------------------------------------
>
>                 Key: FOP-2273
>                 URL: https://issues.apache.org/jira/browse/FOP-2273
>             Project: Fop
>          Issue Type: Bug
>          Components: pdf
>    Affects Versions: trunk
>            Reporter: Max Gilead
>              Labels: easyfix
>         Attachments: Acrobat Reader.png, expected result.png, FOP_Test.pdf, 
> PDF-Rendering.png
>
>
> org.apache.fop.svg.PDFGraphics2D line 1240 (as of SVN revision 148001 [1]) is:
> float ml = bs.getMiterLimit();
> but should be (or equivalent):
> float ml = Math.max(1.0f, bs.getMiterLimit());
> Acrobat Reader (on all platforms) refuses to load graphics data after 
> encountering miter limit < 1.0 and reports an error.
> I can't find a reference to the valid range in the PDF spec but Inkscape also 
> had a problem with values less than 1.0 [2] and SVG spec mandates values >= 
> 1.0 as well [3] so clamping the value to 1.0 or more seems like the right 
> thing to do.
> [1] 
> http://svn.apache.org/viewvc/xmlgraphics/fop/trunk/src/java/org/apache/fop/svg/PDFGraphics2D.java?revision=1480018&view=markup
> [2] 
> http://webcache.googleusercontent.com/search?q=cache:RHSt5Wk7-uQJ:inkscape-forum.andreas-s.net/topic/71990+&cd=7&hl=en&ct=clnk&gl=uk&client=firefox-beta
> [3] http://www.w3.org/TR/SVG11/painting.html#StrokeMiterlimitProperty

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