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https://issues.apache.org/jira/browse/PDFBOX-3791?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16009303#comment-16009303
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Tilman Hausherr commented on PDFBOX-3791:
-----------------------------------------
{quote}
I'll do the memory optimization in DCTFilter.java after the release because I
want to have more time for feedback.
{quote}
I tested different -Xmx options. Without the change (keep using
{{raster.createCompatibleWritableRaster()}}) it works with -Xmx140m but not
130. With the change (cast existing raster) it needs -Xmx160m to render the
file. Very weird... so I'll leave that one untouched.
> Long rendering time
> -------------------
>
> Key: PDFBOX-3791
> URL: https://issues.apache.org/jira/browse/PDFBOX-3791
> Project: PDFBox
> Issue Type: Bug
> Components: Rendering
> Affects Versions: 2.0.5
> Environment: windows
> Reporter: Esteban Nicolas Ruiz
> Assignee: Tilman Hausherr
> Labels: optimization
> Fix For: 2.0.6, 3.0.0
>
> Attachments: slowrender.pdf
>
>
> Attached pdf file takes too long (more then 9 secs) to render in PDFDebugger
> (this is a simplified version of a real life pdf that I can not publish for
> privacy reasons, it takes 57 seconds to render and it contains 56 images and
> some text).
> I have tried with the options provided in
> https://pdfbox.apache.org/2.0/getting-started.html but performance is the same
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