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From "Xin Lin (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (PDFBOX-4076) PDFBox cannot properly handle PDF Name objects containing bytes with values outside the US_ASCII range
Date Wed, 30 May 2018 20:28:00 GMT

    [ https://issues.apache.org/jira/browse/PDFBOX-4076?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16495625#comment-16495625
] 

Xin Lin commented on PDFBOX-4076:
---------------------------------

I saw that this change has been released in 2.0.9, just wondering why this case is still open.
Are there anything else that needs to be fixed?

> PDFBox cannot properly handle PDF Name objects containing bytes with values outside the
US_ASCII range
> ------------------------------------------------------------------------------------------------------
>
>                 Key: PDFBOX-4076
>                 URL: https://issues.apache.org/jira/browse/PDFBOX-4076
>             Project: PDFBox
>          Issue Type: Bug
>    Affects Versions: 2.0.8
>            Reporter: Tilman Hausherr
>            Priority: Major
>
> As reported by [~mkl] in his SO answer
> {quote}The first error in PDF Name handling is that PDFBox internally represents them
as strings after a mixed UTF-8 / CP-1252 decoding strategy. This is wrong, according to the
PDF specification a name object is an atomic symbol uniquely defined by a sequence of any
characters (8-bit values) except null (character code 0).
> (...)
> The second error is, though, that while serializing the PDF it only properly encodes
the characters in the strings representing names which are from US_ASCII, all else are replaced
by '?'
> {quote}
> sample code
> {code:java}
> PDDocument document = new PDDocument();
> PDPage page = new PDPage();
> document.addPage(page);
> document.getDocumentCatalog().getCOSObject().setString(COSName.getPDFName("äöüß"),
"äöüß");
> ByteArrayOutputStream baos = new ByteArrayOutputStream();
> document.save(baos);
> document.close();
> document = PDDocument.load(baos.toByteArray());
> System.out.println(document.getDocumentCatalog().getCOSObject().keySet());
> document.close();
> {code}
> output:
> {noformat}
> [COSName{Type}, COSName{Version}, COSName{Pages}, COSName{????}]
> {noformat}



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