CharSet and CIDSet Verification in PDF/A-1 and PDF/A-2

Here is technical information about how Qoppa’s PDF library jPDFPreflight validates CharSet and CIDSet when checking against PDF/A-1 and PDF/A-2 standards. The PDF technical specs are very ambiguous on this subject. We reviewed the PDF Association technote which reads on page 22: “Requirements on the use of CharSet and CIDSet entries in font dictionaries of […]

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