Affecto.Pdf.Toolkit.PdfInfo.PdfInfo C# (CSharp) Method

        public PdfInfo(string file)
        {     
            try
            {
                reader = new PdfReader(file);

                NumberOfPages = reader.NumberOfPages;
                SignatureNames = reader.AcroFields.GetSignatureNames().AsReadOnly();
            }
            catch (Exception e)
            {
                throw new ReadingPdfInfoFailedException($"Failed to read information from pdf file {file}", e);
            }
            finally
            {
                reader?.Close();
            }
        }
    }