Pdf操作（HTML转PDF，PDF直接网页连接打印机）

Pdf导出的操作：引用TuesPechkin.dll和TuesPechkin.Wkhtmltox.AnyCPU.dll程序集，新建PDF静态类 PDFConverter，在web.config配置保存dir

 /// <summary>
    /// pdf转换
    /// </summary>
    public static class PdfConvert {
        /// <summary>
        /// staticDeploymentPath
        /// </summary>
        private static readonly string StaticDeploymentPath = Path.Combine(AppDomain.CurrentDomain.BaseDirectory, "wkhtmltopdf");

        /// <summary>
        /// CreateWkhtmltopdfPath
        /// </summary>
        public static void CreateWkhtmltopdfPath() {
            if (Directory.Exists(StaticDeploymentPath) == false) {
                Directory.CreateDirectory(StaticDeploymentPath);
            }
        }

        /// <summary>
        /// converter
        /// </summary>
        public static IConverter Converter =
           new ThreadSafeConverter(
                new RemotingToolset<PdfToolset>(
                    new WinAnyCPUEmbeddedDeployment(
                        new StaticDeployment(StaticDeploymentPath)
                    )
                )
            );

    }

public HttpResponseMessage CreateFormPdf(WebTaskFormDetail wtData) {
            try {
                string fileName = AesCode.AesDecrypt(wtData.TaskId) + "_" + wtData.FormId;
                var baseUrl = GetBaseUrl();
                string url = baseUrl + UrlFormTemplate;
                HttpClient client = new HttpClient();
                var template = client.GetStringAsync(url).Result;
                string page = "form.html";
                url = baseUrl + UrlFormContentDir + page;
                var content = client.GetStringAsync(url).Result;

                var json = JsonConvert.SerializeObject(wtData).Replace(@"\", @"\\");

                string html = template.Replace("[[content]]", content).Replace("[[json]]", json);

                string path = HttpContext.Current.Request.PhysicalApplicationPath + ZxjcAttachmentDir + @"html\";
                if (!Directory.Exists(path)) {
                    Directory.CreateDirectory(path);
                }
                StreamWriter sw = new StreamWriter(path + fileName + ".html", false, Encoding.UTF8);
                sw.Write(html);
                sw.Close();

                path = ZxjcAttachmentDir + @"pdf\";
                if (!Directory.Exists(Path.Combine(PhysicalApplicationPath(), path))) {
                    Directory.CreateDirectory(Path.Combine(PhysicalApplicationPath(), path));
                }
                var savePath = path + fileName + ".pdf";
                byte[] pdfBuf = null;
                CreatePdf(Path.Combine(PhysicalApplicationPath(), savePath), fileName, ref pdfBuf);
                var downloadUrl = new Uri(baseUrl + ZxjcAttachmentDir.Replace(@"\", "/") + "pdf/" + fileName + ".pdf");
                //关联任务附件
                var attachmentInfo = new AttachmentInfo {
                    AttachmentName = wtData.FormName + ".pdf",
                    Path = savePath,
                    Url = downloadUrl.ToString(),
                    Description = wtData.Description
                };
                SaveAttachment(attachmentInfo,Convert.ToInt32(AesCode.AesDecrypt(wtData.TaskId)));

                HttpResponseMessage response = new HttpResponseMessage { Content = new StreamContent(new MemoryStream(pdfBuf)) };
                response.Content.Headers.ContentDisposition = new ContentDispositionHeaderValue("attachment");
                response.Content.Headers.ContentLocation = downloadUrl;
                response.Content.Headers.ContentType = new MediaTypeHeaderValue("application/pdf");
                return response;
            }
            catch (Exception ex) {
                throw;
            }
        }

 private void CreatePdf(string path, string fileName, ref byte[] pdfBuf) {
            var document = new HtmlToPdfDocument {
                GlobalSettings ={
                ProduceOutline = true,
                DocumentTitle = "web 表单",
                PaperSize = PaperKind.A4,
                Margins ={All = 1.375,Unit = Unit.Centimeters}
                //Margins = new MarginSettings(50,50,50,50)
                },
                Objects = {
                    new ObjectSettings {  PageUrl = this.GetBaseUrl() + ZxjcAttachmentDir.Replace(@"\", "/") + "html/" + fileName + ".html" }
                }
            };
            pdfBuf = PdfConvert.Converter.Convert(document);
            File.WriteAllBytes(path, pdfBuf);
        }

 private static string PhysicalApplicationPath() {
            return HttpContext.Current.Request.PhysicalApplicationPath;
        }

 直接在浏览器链接打印机打印

 private void CreatePdf(string path, string fileName, ref byte[] pdfBuf) {
            var pageUrl = this.GetBaseUrl() + ZxjcAttachmentDir.Replace(@"\", "/") + "html/" + fileName + ".html";
            var document = new HtmlToPdfDocument {
                GlobalSettings ={
                ProduceOutline = true,
                Copies=1,
                DPI = 1200,
                DocumentTitle = "web 表单",
                PaperSize = PaperKind.A4,
                Orientation = GlobalSettings.PaperOrientation.Portrait,
                OutputFormat = GlobalSettings.DocumentOutputFormat.PDF,
                Margins ={All = 1.375,Unit = Unit.Centimeters}
                //Margins = new MarginSettings(50,50,50,50)
                },
                Objects = {
                    new ObjectSettings {
                        PageUrl = pageUrl,
                        //HtmlText = docHtml,
                        WebSettings = new WebSettings {
                            DefaultEncoding = "utf-8",
                            LoadImages =true,
                            PrintBackground =true,
                            EnableJavascript =true ,
                            PrintMediaType =true,
                            EnablePlugins = true
                        },
                        //LoadSettings =new LoadSettings {
                        //    BlockLocalFileAccess = false,
                        //    RenderDelay=5000,

                        //}
                    }
                }
            };
            pdfBuf = PdfConvert.Converter.Convert(document);
            File.WriteAllBytes(path, pdfBuf);
        }