Hi,
You could set it with the COS API but you'd have to know what to put
into the stream.
An alternative would be to make a PDF/A3-b and remove the incorrect
CIDSet entry (your text is unclear whether it is there or not)
https://stackoverflow.com/questions/31209981/pdfbox-pdf-a-1a-to-pdf-a-3a
Tilman
On 6/16/2025 9:10 AM, christian_kule...@me.com.INVALID wrote:
Hello PDFBox Community,
I am trying to convert a PDF file that was previously created by
JxBrowser from an HTML source to PDF/A-1b with PDFBox. However, the
validation with veraPDF gives the error that the CIDSet is not present
in the FontDescriptor. The fonts are embedded in the PDF and the
CIDSet data also appears to be present in the DescendantFont. However,
I do not seem to have direct access to the CIDSet data in order to be
able to add it manually in the FontDescriptor.
Is there a way to set the CIDSet with the data from the DescendantFont
and thus successfully pass the validation?
*Validation failure*
*```*
*For all CIDFont subsets referenced within a conforming file, the font
descriptor dictionary shall include a CIDSet stream identifying which
CIDs are present in the embedded CIDFont file, as described in PDF
Reference Table 5.20*
*root/document[0]/pages[0](7 0 obj PDPage)/contentStream[0](19 0 obj
PDContentStream)/operators[129]/font[0](AAAAAA+ArialMT)/DescendantFonts[0](AAAAAA+ArialMT)*
*```*
Best regards
Christian
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