Dear Maya,

> Am 21.10.2016 um 22:24 schrieb Maruan Sahyoun <[email protected]>:
> 
> OK - got it I think
> 
>> Am 21.10.2016 um 22:04 schrieb Maruan Sahyoun <[email protected]>:
>> 
>> Mhmm 
>>> Am 21.10.2016 um 21:38 schrieb Tilman Hausherr <[email protected]>:
>>> 
>>> Am 21.10.2016 um 15:24 schrieb Angelova, Maya (KV-Telematik):
>>>> Dear Maruan,
>>>> 
>>>> Here you can download the pdf:
>>>> https://repository.kv-telematik.de/service/local/repositories/resources/content/de/kvtelematik/resources/1.0.0/resources-1.0.0.pdf
>>> 
>>> Hello Maya,
>>> 
>>> Thanks for the file. However according to ISO 19005-1:2005/Cor.2:2011: In a 
>>> linearized PDF, if the ID keyword is present in both the first page trailer 
>>> dictionary and the last trailer dictionary, the value to both instances of 
>>> the ID keyword shall be identical.
>>> https://github.com/veraPDF/veraPDF-corpus/wiki/PDFA-1b-test-corpus
>>> also mentioned in the discussion at
>>> https://issues.apache.org/jira/browse/PDFBOX-2502
>>> 
>>> In your file, the ID is different. (have a look with NOTEPAD++)
>>> 
>>> So normally I'd say your file is not PDF/A-1b. The only thing that makes me 
>>> insecure, is that the PDF Tools folks are usually right….
>> 
>> Acrobat also treats it as valid
> 
> as there was an incremental update to the file it's no longer treated as 
> linearized and as such the provision doesn't apply. @Tilman WDYT?


I've created https://issues.apache.org/jira/browse/PDFBOX-3540 for that. You 
can add yourself as a watcher there to get updated on the progress. Are you OK 
with us adding the sample file to the issue?

BR
Maruan


> 
> BR
> Maruan
> 
> 
>> 
>> Maruan
>> 
>>> 
>>> Tilman
>>> 
>>>> 
>>>> Best regards,
>>>> 
>>>> Maya
>>>> ________________________________________
>>>> Von: Maruan Sahyoun [[email protected]]
>>>> Gesendet: Freitag, 21. Oktober 2016 14:52
>>>> An: [email protected]
>>>> Betreff: Re: Pdf/A signed twice is falsely processed as invalid
>>>> 
>>>> Dear Maya,
>>>>> Am 21.10.2016 um 14:10 schrieb Angelova, Maya (KV-Telematik) 
>>>>> <[email protected]>:
>>>>> 
>>>>> Hello guys,
>>>>> 
>>>>> I have the following problem using apache.pdfbox when validating a valid 
>>>>> PDF/A-1 file, which is being signed twice:
>>>>> 1. The online validator confirms that the file is valid 
>>>>> (https://www.pdf-tools.com/pdf/validate-pdfa-online.aspx)
>>>>> 2. But when I validate it using the following code:
>>>>> <code>
>>>>> PreflightParser parser = new PreflightParser(byteDatasource);
>>>>> parser.parse();
>>>>> PreflightDocument document = parser.getPreflightDocument();
>>>>> document.validate();
>>>>> result = document.getResult();
>>>>> </code>
>>>>> 3. The file is linearized
>>>>> 4. I get that the file is invalid and the error description reads:
>>>>> <i>Trailer Syntax error, ID is different in the first and the last 
>>>>> trailer</i>
>>>>> 
>>>>> According to issues PDFBOX-3256 and PDFBOX-2502 this should be fixed?
>>>>> Could anyone give me a tip how to go around this problem or would that be 
>>>>> a bug?
>>>>> The pdf file is attached.
>>>> the attachement didn't make it onto the list as attachments are not 
>>>> allowed. Could you upload it to a public location?
>>>> 
>>>> BR
>>>> Maruan
>>>> 
>>>>> Best regards,
>>>>> 
>>>>> Maya
>>>>> <TestdateizweimalSigniert.pdf>
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