[jira] [Created] (PDFBOX-3921) CIDSet should be PDF/A-2b compatible

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

Tilman Hausherr created PDFBOX-3921:
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             Summary: CIDSet should be PDF/A-2b compatible
                 Key: PDFBOX-3921
                 URL: https://issues.apache.org/jira/browse/PDFBOX-3921
             Project: PDFBox
          Issue Type: Improvement
          Components: PDModel
    Affects Versions: 2.0.7
            Reporter: Tilman Hausherr
            Priority: Minor
             Fix For: 2.0.8, 3.0.0


From [~eruiz0] in the user mailing list:
{quote}
I have created PDF/A-2b document with pdfbox and I have found that the font subsetting provided by pdfbox doesn't match the following requirement from the specification:

Specification: ISO 19005-2:2011, Clause: 6.2.11.4, Test number: 4
If the FontDescriptor dictionary of an embedded CID font contains a CIDSet stream, then it shall identify all CIDs which are present in the font program, regardless of whether a CID in the font is referenced or used by the PDF or not.

That is: some CIDs which are in the CIDToGidMap don't appear in the CIDSet.
Maybe it is a bug or you can add an option to generate the CIDSet to be consistent with the CIDToGidMap.

Additional details (including a sample pdf file) here:
https://github.com/veraPDF/veraPDF-library/issues/907
{quote}



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