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Posted to dev@pdfbox.apache.org by "Tilman Hausherr (Jira)" <ji...@apache.org> on 2021/04/02 10:21:00 UTC

[jira] [Resolved] (PDFBOX-5134) Very slow rendering on PageDrawer.shadingFill

     [ https://issues.apache.org/jira/browse/PDFBOX-5134?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Tilman Hausherr resolved PDFBOX-5134.
-------------------------------------
      Assignee: Tilman Hausherr
    Resolution: Fixed

Thank you for your contribution [~Schmidor]!

> Very slow rendering on PageDrawer.shadingFill
> ---------------------------------------------
>
>                 Key: PDFBOX-5134
>                 URL: https://issues.apache.org/jira/browse/PDFBOX-5134
>             Project: PDFBox
>          Issue Type: Bug
>          Components: Rendering
>    Affects Versions: 2.0.22, 2.0.23
>            Reporter: Oliver Schmidtmer
>            Assignee: Tilman Hausherr
>            Priority: Major
>              Labels: optimization, shading
>             Fix For: 2.0.24, 3.0.0 PDFBox
>
>         Attachments: PDFBOX-4217-shade_via_1.3_006.pdf, PDFBOX-4217-shade_via_1.3_006.pdf-1.png, PDFBOX-4217-shade_via_1.3_006.pdf-1.png-diff.png, Plan zum Testen.pdf, gs-bugzilla687307-2.pdf, gs-bugzilla687307-2.pdf-1.png, gs-bugzilla687307-2.pdf-1.png-diff.png, 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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