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Posted to dev@pdfbox.apache.org by "Tilman Hausherr (Jira)" <ji...@apache.org> on 2021/03/17 19:18:00 UTC
[jira] [Commented] (PDFBOX-5134) Very slow rendering on
PageDrawer.shadingFill
[ https://issues.apache.org/jira/browse/PDFBOX-5134?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17303676#comment-17303676 ]
Tilman Hausherr commented on PDFBOX-5134:
-----------------------------------------
I started the profiler and yes, the shadingFill takes the time, but then it's java itself?!
> Very slow rendering on PageDrawer.shadingFill
> ---------------------------------------------
>
> Key: PDFBOX-5134
> URL: https://issues.apache.org/jira/browse/PDFBOX-5134
> Project: PDFBox
> Issue Type: Bug
> Reporter: Oliver Schmidtmer
> Priority: Major
> Labels: shading
> Attachments: Plan zum Testen.pdf, image-2021-03-17-20-16-49-221.png
>
>
> The PDF contains many effectively very small shadings, the light cones. As the gradient painting for each light cone is applied on the whole image, rendering is very slow: 29 of 33 seconds are spent in shadingFill.
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