[jira] [Commented] (PDFBOX-4028) SaveIncremental on same opened file

["ASF subversion and git services (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/PDFBOX-4028?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16315257#comment-16315257 ] 

ASF subversion and git services commented on PDFBOX-4028:
---------------------------------------------------------

Commit 1820455 from [~tilman] in branch 'pdfbox/branches/2.0'
[ https://svn.apache.org/r1820455 ]

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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