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https://issues.apache.org/jira/browse/PDFBOX-1274?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13244424#comment-13244424
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Guillaume Bailleul commented on PDFBOX-1274:
--------------------------------------------

Preflight current version is based on ISO 19005 and I understand that version 
accepts PDF 1.4 and further, but I am not sure of my english, can you validate 
that point in the specification ?

If 19005-2 allows older versions of PDF, it can be a reason. Reading PDF 
Reference third edition (defining PDF 1.4), I found DestOutputProfile was 
something new in that version. That's why they are not present in olders pdf. 
in ISO 19005, DestOutputProfile is mandatory.

In the xmp block of paed, the value of pdfaid:part is 1 (for part 1 of the 
specification), so, in my opinion when doc converter 10 changed the pdf to 
pdf/a it did not change the PDF header and did not change anything in color 
spaces.

                
> Another Invalid Color Space, DestOutputProfile , passes commercial validators
> -----------------------------------------------------------------------------
>
>                 Key: PDFBOX-1274
>                 URL: https://issues.apache.org/jira/browse/PDFBOX-1274
>             Project: PDFBox
>          Issue Type: Bug
>          Components: Preflight
>    Affects Versions: 1.7.0
>         Environment: LInux etc
>            Reporter: William Fausser
>         Attachments: kun_muutat_suomeenEN.pdf.pdf, 
> paed_live.2.8.cv.60091.5232144.0_A.pdf
>
>
> kun_muutat_suomeenEN.pdf.pdf is not valid, error(s):
> 2.4.3 | Invalid Color space, Invalid Color space, DestOutputProfile is missing

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