ComponentPro.Pdf.PdfException: Unexpected token c_YSU before xxxxx

This error has been occurring frequently when merging larger number of pdf files. It has caused the unavailability of reports to our users. Please help! ComponentPro.Pdf.PdfException: Unexpected token c_YSU before xxxxx at c_XTU.c_YH(c_N5U c_ZA, String c_ECC) at c_XTU.c_COA() at c_RTU.c_HJE(c_SJN c_PBN) at c_G.c_HJE(c_SJN c_PBN) at c_QJN.get_c_VCG() at c_QJN.c_HJE() at c_QJN.get_c_M5N() at c_QJN.c_NMA(c_BPT c_JVA) at c_LJN.c_ZDV(c_BPT c_JVA) at c_LJN.c_NMA(c_BPT c_JVA, Boolean c_EEV) at c_LJN.c_NMA(c_BPT c_JVA) at c_VVU.c_TJO(c_SJN c_BCA, c_MJP c_HWP) at c_G.c_DXU(c_SJN c_BCA, c_MJP c_HWP, c_XLT c_JVA) at c_G.c_CXU(c_SJN c_BCA, c_XLT c_JVA) at c_G.c_YVU(c_XLT c_JVA) at c_G.c_NMA(c_XLT c_JVA) at ComponentPro.Pdf.PdfDocument.Save(Stream stream) Our code excerpts: using ComponentPro.Pdf; ........... PdfDocument mergedDoc = new PdfDocument(); PdfDocumentBase.Merge(mergedDoc, reports.Select(x => x.ReportObject).ToArray()); MemoryStream outStream = new MemoryStream(); mergedDoc.Save(outStream);

Could you let us know the version of this lib? It looks like an old version. We would recommend testing against the latest one that the issue might have already been fixed.