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https://issues.apache.org/jira/browse/PDFBOX-4554?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16851235#comment-16851235
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Tilman Hausherr commented on PDFBOX-4554:
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Even if I'd replace just the {color:#333333}ByteArrayInputStream{color}() with
the other constructor (and pass 0 and buf.length), it would be the same because
of the similarities between the 1 argument and the 3 argument constructor.
Verifying the signatures in the historical PDFs can be done without cutting off
the complete PDF, the byte range is still valid. That's how it is done in the
ShowSignature example in the source code download.
> 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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