Vlad Romascanu,
Vlad Romascanu wrote: > Trying to digitally sign a PDF; I get the following when attempting to > close the output file: > > java.lang.ClassCastException: com.itextpdf.text.pdf.PdfDictionary cannot > be cast to com.itextpdf.text.pdf.PRIndirectReference > at > com.itextpdf.text.pdf.PdfStamperImp.close(PdfStamperImp.java:209) > ... > > This seems to happen specifically with PDFs generated by PDFCreator (on > Windows.) See attachments for a few small samples which exhibit the > problem. PdfStamperImp.java:209 is: PRIndirectReference iInfo = (PRIndirectReference)reader.getTrailer().get(PdfName.INFO); Thus we have to inspect the trailer of your document, e.g. of 1_50.pdf: trailer <</Info <</Info <</Producer (Tailor Made Software i...@tailormade.com)/Title (From AutoCAD drawing "samples/1_50.dwg")>>>>/Root 2 0 R/Size 13>> This is broken in two ways. First of all the /Info value (if present) shall be an indirect reference, cf. ISO 32000-1:2008 Table 15: - Info - dictionary - (Optional; shall be an indirect reference) The document’s information dictionary (see 14.3.3, "Document Information Dictionary"). In your case it's a direct object, though. Second, the information dictionary should immediately contain the document information, not inside an inner dictionary. Regards, Michael. PS: Of course a ClassCastException is not a nice way of iText to react to such a situation... ;) -- View this message in context: http://itext-general.2136553.n4.nabble.com/ClassCastException-in-PdfStamperImp-java-tp2232601p2232714.html Sent from the iText - General mailing list archive at Nabble.com. ------------------------------------------------------------------------------ _______________________________________________ iText-questions mailing list iText-questions@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/itext-questions Buy the iText book: http://www.itextpdf.com/book/ Check the site with examples before you ask questions: http://www.1t3xt.info/examples/ You can also search the keywords list: http://1t3xt.info/tutorials/keywords/
