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https://issues.apache.org/jira/browse/PDFBOX-5293?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17427463#comment-17427463
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Tilman Hausherr commented on PDFBOX-5293:
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There are slight rendering differences; these happen in
{{TransparencyGroup.getBounds()}}. The previous version did a float to double
conversion by using an unneeded AffineTransform.
> Store x and y scaling factor
> ----------------------------
>
> Key: PDFBOX-5293
> URL: https://issues.apache.org/jira/browse/PDFBOX-5293
> Project: PDFBox
> Issue Type: Task
> Components: Rendering
> Affects Versions: 2.0.24, 3.0.0 PDFBox
> Reporter: Tilman Hausherr
> Assignee: Tilman Hausherr
> Priority: Minor
> Labels: optimization
> Fix For: 2.0.25, 3.0.0 PDFBox
>
>
> The x and y scaling factor need to be calculated only once, even if the xform
> gets reassigned (because that reassignment is that scaling factor). This
> should bring a slight speed gain, unless the JIT knows that it's always the
> same. In that case, we just have less code.
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