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Posted to dev@pdfbox.apache.org by "Evgeniy Muravitskiy (JIRA)" <ji...@apache.org> on 2015/09/21 17:24:04 UTC
[jira] [Updated] (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 ]
Evgeniy Muravitskiy updated PDFBOX-2981:
----------------------------------------
Attachment: Incremental_save_fix.patch
It`s one way of possible solution of problem. It`s work also with files which has incorrect xref table.
> 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
> 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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