转换器提供了许多强大的选项(将任何网页转换为pdf,将任何html字符串转换为pdf,html5 / css3 / javascript支持,页眉和页脚支持等),唯一的限制是它最多可以生成pdf文档。5页长。
.NET的免费HTML至Pdf转换器–社区版功能:
1.最多生成5页pdf文档,将任何网页转换为pdf
2.将任何原始html字符串转换为pdf
3.设置pdf页面设置(页面大小,页面方向,页面边距)
4.在转换过程中调整内容大小以适合pdf页面
5.设置pdf文档属性
6.设置pdf查看器首选项
7.设置pdf安全性(密码,权限)
8.设置转换延迟和网页导航超时
9.自定义页眉和页脚
10.在页眉中支持html和页脚
11.自动和手动分页符
12.在每个页面上重复html表头
13.支持@media类型屏幕和打印
14.支持内部和外部链接
15.基于html元素自动生成书签
16.支持HTTP标头
17.支持HTTP cookie
18.支持需要身份验证的网页
19.支持代理服务器
20.启用/禁用javascript
21.修改颜色空间
22.多线程支持
23.HTML5 / CSS3支持
24.Web字体支持等等
Install-Package Select.HtmlToPdf2、方法
using SelectPdf; using System.Collections.Specialized; using System.IO; using System.Web; namespace BQoolCommon.Helpers.File { public class WebToPdf { public WebToPdf() { //SelectPdf.GlobalProperties.LicenseKey = "your-license-key"; } /// <summary> /// 堆代码 duidaima.com /// 將 Html 轉成 PDF,並儲存成檔案 /// </summary> /// <param name="html">html</param> /// <param name="fileName">絕對路徑</param> public void SaveToFileByHtml(string html, string fileName) { var doc = SetPdfDocument(html); doc.Save(fileName); } /// <summary> /// 傳入 Url 轉成 PDF,並儲存成檔案 /// </summary> /// <param name="url">url</param> /// <param name="fileName">絕對路徑</param> /// <param name="httpCookies">Cookies</param> public void SaveToFileByUrl(string url, string fileName, NameValueCollection httpCookies) { var doc = SetPdfDocument(url, httpCookies); doc.Save(fileName); } /// <summary> /// 將 Html 轉成 PDF,並輸出成 byte[] 格式 /// </summary> /// <param name="html">html</param> /// <returns></returns> public byte[] GetFileByteByHtml(string html) { var doc = SetPdfDocument(html); return doc.Save(); } /// <summary> /// 傳入 Url 轉成 PDF,並輸出成 byte[] 格式 /// </summary> /// <param name="url">url</param> /// <param name="httpCookies">Cookies</param> /// <returns></returns> public byte[] GetFileByteByUrl(string url, NameValueCollection httpCookies) { var doc = SetPdfDocument(url, httpCookies); return doc.Save(); } /// <summary> /// 將 Html 轉成 PDF,並輸出成 Stream 格式 /// </summary> /// <param name="html">html</param> /// <returns></returns> public Stream GetFileStreamByHtml(string html) { var doc = SetPdfDocument(html); var pdfStream = new MemoryStream(); doc.Save(pdfStream); pdfStream.Position = 0; return pdfStream; } /// <summary> /// 傳入 Url 轉成 PDF,並輸出成 Stream 格式 /// </summary> /// <param name="html">html</param> /// <returns></returns> public Stream GetFileStreamByUrl(string url, NameValueCollection httpCookies) { var doc = SetPdfDocument(url, httpCookies); var pdfStream = new MemoryStream(); doc.Save(pdfStream); pdfStream.Position = 0; return pdfStream; } private PdfDocument SetPdfDocument(string html) { var converter = new HtmlToPdf(); converter.Options.WebPageWidth = 1200; html = HttpUtility.HtmlDecode(html); return converter.ConvertHtmlString(html); } private PdfDocument SetPdfDocument(string url, NameValueCollection httpCookies) { var converter = new HtmlToPdf(); converter.Options.WebPageWidth = 1200; if (httpCookies != null && httpCookies.Count != 0) { converter.Options.HttpCookies.Add(httpCookies); } return converter.ConvertUrl(url); } } }
/// <summary> /// 下载pdf /// </summary> public void Downpdf(string data) { var stream = new BQoolCommon.Helpers.File.WebToPdf().GetFileStreamByHtml(Gethtml(data)); Response.Clear(); //二进制流数据(如常见的文件下载) Response.ContentType = "application/octet-stream"; //通知浏览器下载文件而不是打开 Response.AddHeader("Content-Disposition", "attachment; filename=" + HttpUtility.UrlEncode("Profit and Loss Statement.pdf", System.Text.Encoding.UTF8)); var bytes = StreamToBytes(stream); Response.BinaryWrite(bytes); Response.Flush(); stream.Close(); stream.Dispose(); Response.End(); }那么如何获取指定页面的html 呢 传入对应的model 获得指定动态的html
private string Gethtml(string data) { string str = ""; str = this.ControllerContext.RenderViewToString("ProfitDetails", data); return str; } using BQoolCommon.Helpers.Format; using Newtonsoft.Json; using OrdersManager.Models.ViewModel.Report; using System; using System.Collections.Generic; using System.IO; using System.Linq; using System.Web; using System.Web.Mvc; namespace OrdersManager.Web.Infrastructure { public static class HelperExtensions { public static string RenderViewToString(this ControllerContext context, string viewName, string data) { if (string.IsNullOrEmpty(viewName)) viewName = context.RouteData.GetRequiredString("action"); context.Controller.ViewData.Model = JsonConvert.DeserializeObject<ProfitDetailsmodel>(StringTools.Base64Decode(StringTools.Base64Decode(data))); using (var sw = new StringWriter()) { ViewEngineResult viewResult = ViewEngines.Engines.FindPartialView(context, viewName); var viewContext = new ViewContext(context, viewResult.View, context.Controller.ViewData, context.Controller.TempData, sw); try { viewResult.View.Render(viewContext, sw); } catch (Exception ex) { throw; } return sw.GetStringBuilder().ToString(); } } } }参考文档