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https://issues.apache.org/jira/browse/PDFBOX-3233?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15154050#comment-15154050
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Isto Nikula commented on PDFBOX-3233:
-------------------------------------
Using resource cache seems to improve performance quite a lot at least for some
PDFs: I made a test case demonstrating this here
https://github.com/istonikula/pdfbox-3233. When running without cache the test
takes around 8s to complete, compared to 0.8s with cache.
I was running the test on OSX El Capitan 2.2 GHz i7 with oracle jdk 1.8.0_51-b16
> Create default resources with cache
> -----------------------------------
>
> Key: PDFBOX-3233
> URL: https://issues.apache.org/jira/browse/PDFBOX-3233
> Project: PDFBox
> Issue Type: Wish
> Components: AcroForm
> Affects Versions: 2.0.0
> Reporter: Isto Nikula
> Priority: Minor
> Labels: newbie
>
> NOTE: actual version is 2.0.0-RC3
> In PDAcroForm#getDefaultResources existing resources are created like this:
> {code}
> COSDictionary dr = (COSDictionary)
> dictionary.getDictionaryObject(COSName.DR);
> if (dr != null)
> {
> retval = new PDResources(dr);
> }
> {code}
> PDResources supports resource cache but default resources is always created
> without one.
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