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https://issues.apache.org/jira/browse/PDFBOX-3764?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15980979#comment-15980979
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Tilman Hausherr commented on PDFBOX-3764:
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Did you use {{-Dsun.java2d.cmm=sun.java2d.cmm.kcms.KcmsServiceProvider}} and/or
{{-Dorg.apache.pdfbox.rendering.UsePureJavaCMYKConversion=true}} ?
> 100 times performance hit on creating images
> --------------------------------------------
>
> Key: PDFBOX-3764
> URL: https://issues.apache.org/jira/browse/PDFBOX-3764
> Project: PDFBox
> Issue Type: Improvement
> Components: Rendering
> Affects Versions: 2.0.6
> Reporter: Daniel Persson
> Labels: image, performance
> Attachments: callstack_1.png, callstack_2.png, test.pdf
>
>
> We found that PDFBox creates a better image than poppler so we wanted to
> switch out our environment to get these improvements but found a file that
> took about 10 minutes to create one image with PDFBox and only about 6
> seconds with poppler. So a 100 times performance hit if we where to change.
> I've done some rudimentary profiling on the code and found that most of the
> time is spent in ColorConvertOp.filter. Maybe there is a leaner way to
> implement this in order to get a better result?
> best regards
> Daniel
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