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https://issues.apache.org/jira/browse/PDFBOX-4028?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16315258#comment-16315258
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ASF subversion and git services commented on PDFBOX-4028:
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Commit 1820456 from [~tilman] in branch 'pdfbox/trunk'
[ https://svn.apache.org/r1820456 ]
PDFBOX-4028: improve javadoc that destination stream should not point to source
> SaveIncremental on same opened file
> -----------------------------------
>
> Key: PDFBOX-4028
> URL: https://issues.apache.org/jira/browse/PDFBOX-4028
> Project: PDFBox
> Issue Type: Bug
> Components: Writing
> Affects Versions: 2.0.8
> Reporter: Martin Mancuska
> Attachments: pdf_reference_1-7.pdf
>
>
> The incremental save does not work correctly if it is done on the same opened
> document. It produces corrupted file. The save incremental should append
> changes at the end of file (after last origin EOF).
> Newly saved file contains changes also in the middle of the file not only at
> the end. Changes in the middle of file contains zeroed bytes or garbage.
> Tested with the latest stable version of PDFBox 2.0.8.
>
> Sample code:
> {code:java}
> String fileName = "/path/to/document.pdf";
> PDDocument doc = PDDocument.load((new File(fileName));
> ...
> document changes
> ...
> try ( OutputStream outStream = new FileOutputStream(fileName)) {
> doc.saveIcremental(outStream);
> }
> catch ....
> ...
> {code}
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