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https://issues.apache.org/jira/browse/PDFBOX-4022?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16264598#comment-16264598
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ASF subversion and git services commented on PDFBOX-4022:
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Commit 1816170 from [~tilman] in branch 'pdfbox/branches/2.0'
[ https://svn.apache.org/r1816170 ]
PDFBOX-4022: cache colorspace indirect objects
> Cache ColorSpace instances in PDColorSpace.java
> -----------------------------------------------
>
> Key: PDFBOX-4022
> URL: https://issues.apache.org/jira/browse/PDFBOX-4022
> Project: PDFBox
> Issue Type: Improvement
> Components: Rendering
> Affects Versions: 2.0.7, 2.0.8
> Environment: Windows 10
> Reporter: savan patel
> Assignee: Tilman Hausherr
> Labels: patch
> Attachments: PDColorSpace.java.patch, selection.pdf
>
>
> I have a PDF which contains a lot of Images. Each time, pdfbox parse the
> image it uses the colorspace to parse it and most of the time colorspace is
> the same object. I tried to cache the colorspace instances in
> PDColorSpace.java as shown in the attached patch. For this particular PDF,
> this change improves the performance of parsing and rendering the images from
> 15 minutes down to 3 minutes. I shared the PDF.
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