博客

using iTextSharp.text.pdf;
using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace Common
{
    public class PDFHelper
    {
        
        ///使用示例：
        ///简单模版文件可以在线生成(http://www.pdfescape.com/windows/)使用Form Field创建需要填充的内容的控件
        ///var template_url = @"C:\Users\Song\Desktop\tmpplate.pdf";
        ///var save_pdf_url = @"C:\Users\Song\Desktop\new.pdf";
        ///var dic = PDFHelper.ReadForm(template_url);
        ///dic["name"] = "张三";
        ///dic["id_card"] = "111111111111";
        ///PDFHelper.FillForm(template_url, save_pdf_url, dic);
        
        /// 

        /// 读取pdf模版中的标签
        /// 
        /// pdf模版文件路径
        /// 
   
   
        public static Dictionary
   
   
    
     ReadForm(string pdfTemplate)
        {
            Dictionary
    
    
     
      dic = new Dictionary
     
     
      
      ();
            PdfReader pdfReader = null;
            try
            {
                pdfReader = new PdfReader(pdfTemplate);
                AcroFields pdfFormFields = pdfReader.AcroFields;
                foreach (KeyValuePair
      
      
       
        de in pdfFormFields.Fields)
                {
                    dic.Add(de.Key, "");
                }
            }
            catch (Exception ex)
            {
                LogHelper.Error(ex.Message);
            }
            finally
            {
                if (pdfReader != null)
                {
                    pdfReader.Close();
                }
            }
            return dic;
        }
        /// 
       
       
 /// 向pdf模版填充内容，并生成新的文件 /// 
        /// 
       
       模版路径
        /// 
       
       生成文件保存路径
        /// 
       
       标签字典(即模版中需要填充的控件列表)
        public static void FillForm(string pdfTemplate, string newFile, Dictionary
       
       
         dic) { PdfReader pdfReader = null; PdfStamper pdfStamper = null; try { pdfReader = new PdfReader(pdfTemplate); pdfStamper = new PdfStamper(pdfReader, new FileStream( newFile, FileMode.Create)); AcroFields pdfFormFields = pdfStamper.AcroFields; //设置支持中文字体 BaseFont baseFont = BaseFont.CreateFont("C:\\WINDOWS\\FONTS\\STSONG.TTF", BaseFont.IDENTITY_H, BaseFont.EMBEDDED); pdfFormFields.AddSubstitutionFont(baseFont); foreach (KeyValuePair 
        
          de in dic) { pdfFormFields.SetField(de.Key, de.Value); } pdfStamper.FormFlattening = true; } catch (Exception ex) { LogHelper.Error(ex.Message); } finally { if (pdfStamper != null) { pdfStamper.Close(); } if (pdfReader != null) { pdfReader.Close(); } } } } }