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Posted to dev@pdfbox.apache.org by "Neil McErlean (JIRA)" <ji...@apache.org> on 2011/05/14 20:45:47 UTC
[jira] [Updated] (PDFBOX-1011) Incorrect metadata for encrypted
PDFs with non-ASCII characters
[ https://issues.apache.org/jira/browse/PDFBOX-1011?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Neil McErlean updated PDFBOX-1011:
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Attachment: MHH_Torque_convertor2.pdf
> Incorrect metadata for encrypted PDFs with non-ASCII characters
> ---------------------------------------------------------------
>
> Key: PDFBOX-1011
> URL: https://issues.apache.org/jira/browse/PDFBOX-1011
> Project: PDFBox
> Issue Type: Bug
> Components: Parsing
> Affects Versions: 1.5.0
> Environment: I'm on Mac OS X 10.6, but I would think it affects all.
> Reporter: Neil McErlean
> Priority: Minor
> Attachments: MHH_Torque_convertor2.pdf
>
>
> I have a document which has Author metadata = "Jırg Boettger". That second character is not an 'i', it is a dotless lower case i.
> It is also an encrypted pdf, with user password = "".
> The problem is that if I load the document, decrypt it and then try to examine the document-level metadata (such as author) I see problems with the non-ASCII chars.
> I will attach a testcase & the sample PDF that reproduces the problem for me.
> A bit of detail that may be useful: COSObject 19 0 at the end of the PDF defines the Author. It is represented as byte[] = {-95, -118, -50, 122, -127, 105, 53, 105, 50, 14, -27, 122, 120}
> SecurityHandler.encryptData() line 223 - which decrypts the string gives: J?rg Boettger. bytes = [74, -102, 114, 103, 32, 66, 111, 101, 116, 116, 103, 101, 114]
> Note the -102 in the second character.
> The second character, whose byte-value is -102 is not a displayable ASCII char (even at 256 -102 = 154) and it just gets dropped from the COSString & so we get an author of Jrg Boettger from PDDocumentInformation.
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