PdfRpt.Core.Helper.ExtractPdfFileAttachments.extractDocumentLevelAttachments C# (CSharp) Méthode

        private static IList<AttachmentFile> extractDocumentLevelAttachments(PdfReader reader)
        {
            var results = new List<AttachmentFile>();

            var names = PdfReader.GetPdfObject(reader.Catalog.Get(PdfName.NAMES)) as PdfDictionary;
            if (names == null)
                return null;

            var files = PdfReader.GetPdfObject(names.Get(PdfName.EMBEDDEDFILES)) as PdfDictionary;
            if (files == null)
                return null;

            var filesMap = PdfNameTree.ReadTree(files);
            foreach (var item in filesMap)
            {
                var filespec = PdfReader.GetPdfObject(item.Value) as PdfDictionary;
                var file = extractFile(filespec);
                if (file == null)
                    continue;
                results.Add(file);
            }

            return results;
        }