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https://issues.apache.org/jira/browse/PDFBOX-4664?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16947930#comment-16947930
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Tilman Hausherr commented on PDFBOX-4664:
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I am afraid yes, if it is an indirect object. The new one would be a direct
object or a different indirect object. Adobe Reader might think the page itself
has been modified, i.e. we wouldn't detect it with our tests, only viewing with
Adobe would show the problem. We had something similar to this once a few years
ago, it was when signing a PDF that was already signed. The problem there was
with a color space.
> Iterator.remove() does not work in COSArrayList
> -----------------------------------------------
>
> Key: PDFBOX-4664
> URL: https://issues.apache.org/jira/browse/PDFBOX-4664
> Project: PDFBox
> Issue Type: Bug
> Affects Versions: 2.0.17
> Reporter: Zhichao Yang
> Assignee: Andreas Lehmkühler
> Priority: Minor
>
> {code:java}
> for (Iterator itr = pdfPage.getAnnotations().iterator(); itr.hasNext(); ) {
> itr.remove();
> }
> {code}
> This is not working on annotations list because cosArrayList.iterator() is
> cosArrayList.actual.iterator(), but when convert to a COSArray it uses
> cosArrayList.array, which is not affected by iterator.remove(). A iterator to
> sync the actual and the array would be nice.
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