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https://issues.apache.org/jira/browse/PDFBOX-4080?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16341224#comment-16341224
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Tilman Hausherr commented on PDFBOX-4080:
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None. Storing the scratch file in the PDAnnotation object would bring other
problems. And creating a "lean" scratchFile that would only use the memory
needed would bring new risks.
> Improve memory consumption of PDAbstractAppearanceHandler
> ---------------------------------------------------------
>
> Key: PDFBOX-4080
> URL: https://issues.apache.org/jira/browse/PDFBOX-4080
> Project: PDFBox
> Issue Type: Improvement
> Components: PDModel
> Affects Versions: 3.0.0 PDFBox
> Reporter: Maruan Sahyoun
> Assignee: Maruan Sahyoun
> Priority: Major
> Labels: Annotations
> Fix For: 3.0.0 PDFBox
>
>
> PDAbstractAppearanceHandler calls new COSStream(), this has a huge memory
> footprint (PDFBOX-3868 and PDFBOX-3852). We'd need to find a way to pass the
> document, or the document scratch file, or there will be trouble for files
> with many annotations, e.g. a long scientific document with many footnotes.
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