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https://issues.apache.org/jira/browse/PDFBOX-3135?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15123935#comment-15123935
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Tilman Hausherr commented on PDFBOX-3135:
-----------------------------------------

1.8 is less strict, some PDF/A flaws are not discovered. The problem with this 
file is this:
{code}
/CreationDate (D:20141105165027Z00'00')
{code}
the regex in SynchronizedMetaDataValidation.hasTimeZone() doesn't match, so it 
claims that this string has no time zone, while the xmp string has one. 
PDF-Tools accepts the file, but Z00'00' doesn't look like a good timezone to 
me. The PDF specification requires "D:YYYYMMDDHHmmSSOHH'mm" and is somewhat 
ambigous in its text, it mentioned the "Z" but does not require that it be the 
end of the string.

> False negative with 2503.pdf file of issue PDFBOX-2503
> ------------------------------------------------------
>
>                 Key: PDFBOX-3135
>                 URL: https://issues.apache.org/jira/browse/PDFBOX-3135
>             Project: PDFBox
>          Issue Type: Bug
>          Components: Preflight
>    Affects Versions: 1.8.10, 2.0.0
>         Environment: jdk1.7.0_09
>            Reporter: Antoine Ribes
>
> Using the code of the CookBook for PDF/A validation (1.8.10) :
> - with the 2503.pdf as entry file
> - and only replacing the code "parser.parse()" with 
> "parser.parse(Format.PDF_A1B)",
> result.isValid() is false with 1.8.10, 2.0.0-RC1 and 2.0.0-RC2 versions of 
> pdfbox and preflight. The error displayed is : "7.2 : Error on MetaData, 
> CreationDate present in the document catalog dictionary doesn't match with 
> XMP information"
> Note : With same file and version 1.8.8, I get as expected a result.isValid() 
> true and, with version 1.8.7, I actually obtain the "7.2 : Error on MetaData, 
> Producer present in the document catalog dictionary doesn't match with XMP 
> information" error message given in the issue PDFBOX-2503.



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