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Posted to dev@pdfbox.apache.org by "Andreas Lehmkühler (JIRA)" <ji...@apache.org> on 2017/03/05 21:15:32 UTC

[jira] [Closed] (PDFBOX-2981) Not correct support of incremental save

     [ https://issues.apache.org/jira/browse/PDFBOX-2981?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Andreas Lehmkühler closed PDFBOX-2981.
--------------------------------------
    Resolution: Duplicate

Closed as duplicate of PDFBOX-45.

> Not correct support of incremental save
> ---------------------------------------
>
>                 Key: PDFBOX-2981
>                 URL: https://issues.apache.org/jira/browse/PDFBOX-2981
>             Project: PDFBox
>          Issue Type: Bug
>          Components: Writing
>    Affects Versions: 2.0.0
>            Reporter: Evgeniy Muravitskiy
>            Assignee: Andreas Lehmkühler
>         Attachments: Incremental_save_fix.patch
>
>
> When write code like follows:
> {code}
> try {
> 			PDDocument document = PDDocument.load(new File(SOURCE_PATH));
> 			// SOME_OBJECT is not object number of catalog, info dictionary or encrypt
> 			COSObjectKey key = new COSObjectKey(SOME_OBJECT, 0);
> 			COSObject objectFromPool = document.getDocument().getObjectFromPool(key);
> 			COSDictionary object = (COSDictionary) objectFromPool.getObject();
> 			object.setItem(COSName.getPDFName("Test"), COSBoolean.TRUE);
> 			object.setNeedToBeUpdated(true);
> 			OutputStream writer = new BufferedOutputStream(new FileOutputStream(OUTPUT_PATH));
> 			document.saveIncremental(writer);
> 			writer.close();
> 			document.close();
> 		} catch (IOException e) {
> 			e.printStackTrace();
> 		}
> {code}
> in result file I`ve got nothing. It`s related with next problem: when we use {{PDDocument.save(OutputStream)}} - {{OutputStream}} is real output stream (for example, {{FileOutputStream}} or {{BufferedOutputStream}}), but incremental save use {{ByteArrayOutputStream}} which not store data in some file and only keep it in memory. Also when save is incremental data from source file is not send to result file.



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