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https://issues.apache.org/jira/browse/PDFBOX-1312?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13414487#comment-13414487
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Eric Leleu commented on PDFBOX-1312:
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Hi,
The refactor of Font validation is committed.
I hope this new version is more clear than the older.
Now all font validators have 4 steps :
- check that all mandatory field are present
- process the FontDescription validation
- check the encoding rules
- check rules linked with the toUnicode (nothing to do in PDF/A-1b)
Font Descriptors are processed by specific classes and have 4 steps :
- check that all mandatory field are present
- extract the FontFile stream
- process the font file stream in order to compute Glyph Widths
- check Font MetaData entry
There are two exception on this :
- Type3 Font that has specific behaviour
- CompositeFont that calls a FontValidator for the DescendantFont instead of
calling a FontDescriptor
Like for the older version, FontContainer objects contain information to allow
the Glyph width validation.
Any feedbacks are welcomes.
BR,
Eric
PS : I will be off line during one week
> Refactor the PdfA parser
> ------------------------
>
> Key: PDFBOX-1312
> URL: https://issues.apache.org/jira/browse/PDFBOX-1312
> Project: PDFBox
> Issue Type: Improvement
> Components: Preflight
> Affects Versions: 1.7.0
> Reporter: Eric Leleu
> Assignee: Eric Leleu
> Fix For: 1.8.0
>
> Attachments: patch-PDFBOX-1312.txt.gz
>
>
> To fix the PDFBox-1274 issue, the validation of PDF/A needs a refactoring.
> Currently, each XRef entry is checked independently.
> Most of the time, this is enough because the required information to validate
> the object are present in the object.
> For the issue PDFBox-1274, the object validation should access to the page
> that uses the object.
> After the refactoring the valdiation unit will be the PDPage.
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