[jira] [Resolved] (PDFBOX-3541) Use /L entry to determine if a linearized file shall be treated as such for PDF/A validation

["Tilman Hausherr (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/PDFBOX-3541?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Tilman Hausherr resolved PDFBOX-3541.
-------------------------------------
    Resolution: Fixed
      Assignee: Tilman Hausherr

> Use /L entry to determine if a linearized file shall be treated as such for PDF/A validation
> --------------------------------------------------------------------------------------------
>
>                 Key: PDFBOX-3541
>                 URL: https://issues.apache.org/jira/browse/PDFBOX-3541
>             Project: PDFBox
>          Issue Type: Improvement
>          Components: Preflight
>    Affects Versions: 2.0.3
>            Reporter: Maruan Sahyoun
>            Assignee: Tilman Hausherr
>            Priority: Minor
>             Fix For: 2.0.4, 2.1.0
>
>
> With PDFBOX-3540 the detection of a linearized file which has later been updated for PDF/A validation was improved so that provisions can be properly applied or ignored. That could be improved by checking the /L entry of the linearization dictionary. The *ISO 19005-1:2005/Cor.2:2011* has this:
> {quote}
> 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.
> ...
> This provision shall not apply where the value to the L key in the linearization dictionary does not match the actual length of the PDF.
> {quote} 



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