[
https://issues.apache.org/jira/browse/PDFBOX-2250?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14107959#comment-14107959
]
Andreas Lehmkühler commented on PDFBOX-2250:
--------------------------------------------
No, according to the spec a pdf shall start with the pdf version
{quote}
7.5.2 File Header
The first line of a PDF file shall be a header consisting of the 5 characters
%PDF – followed by a version number of the form 1.N, where N is a digit between
0 and 7.
{quote}
> Improve XRef self healing mechanism
> -----------------------------------
>
> Key: PDFBOX-2250
> URL: https://issues.apache.org/jira/browse/PDFBOX-2250
> Project: PDFBox
> Issue Type: Improvement
> Components: Parsing
> Affects Versions: 1.8.6, 1.8.7, 2.0.0
> Reporter: Andreas Lehmkühler
> Assignee: Andreas Lehmkühler
> Attachments: PDFBOX-2250-107425-empty-xref.pdf,
> PDFBOX-2250-110264-xref-zeronumber.pdf
>
>
> PDFBOX-1769 introduced a "self healing" mechanism to repair corrupt XRef
> offsets. But that one was just a starter and there remain a lot of issues to
> be solved. I'm planing to solve at least some of them.
> All fixes and improvements are targeting the non-sequential parser and I
> won't port those changes to the old parser.
--
This message was sent by Atlassian JIRA
(v6.2#6252)
