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https://issues.apache.org/jira/browse/PDFBOX-4554?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16851907#comment-16851907
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Tilman Hausherr commented on PDFBOX-4554:
-----------------------------------------

No, because as far as I've understood, that extra byte allocation is in your 
code, because you want to pass different byte arrays to {{getSignedContents()}} 
for each revision. That is not needed. You should pass the same array each 
time, {{COSFilterInputStream}} picks what it needs.

> operations taking a byte[] need to allow for offset and length too
> ------------------------------------------------------------------
>
>                 Key: PDFBOX-4554
>                 URL: https://issues.apache.org/jira/browse/PDFBOX-4554
>             Project: PDFBox
>          Issue Type: Improvement
>            Reporter: Jason Pyeron
>            Priority: Major
>
> Without this, massive amounts of memory must be copied/allocated to "trim" 
> byte[].
> See forthcoming pull request.



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