Somehow the attached program works for some users (returns the bar code), but not all (returns null). We are on Linux platform. Is there anything other requirement, in addition to the jar files, in order for it to work?
There is nothing special you have to do on Linux to run the PdfExtractor. However, we think that the problem could be with the particular PDF. Can you please share the problematic PDF with us, so we could test the issue at our end?
This issue is logged as PDFKITJAVA-11806 in our issue tracking system. Our team will be looking into the matter and you’ll be updated once the issue is resolved.