C#生成PDF文件流

本文实例为大家分享了c#生成pdf文件流的具体代码，供大家参考，具体内容如下

1、设置字体

static basefont fontbase = basefont.createfont("c:\\windows\\fonts\\stsong.ttf", basefont.identity_h, basefont.embedded);
    static itextsharp.text.font bodyfont = new itextsharp.text.font(fontbase, 12);
    static itextsharp.text.font titlefont = new itextsharp.text.font(fontbase, 18);
    static itextsharp.text.font paragraphfont = new itextsharp.text.font(fontbase, 15);
    static itextsharp.text.font linkfont = new itextsharp.text.font(fontbase, 12, font.underline, basecolor.blue);

2.生成pdf文件流返回byte数组

public byte[] doccreate(system.drawing.image image, list<treenodes> list)
    {
      memorystream file = new memorystream();

      string filename = string.empty;
      rectangle page = pagesize.a4;
      float y = page.height;
      document document = new document(page, 15, 15, 30, 30);
      float docwidth = page.width - 15 * 2;
      float docheight = page.height - document.bottommargin - document.topmargin;
      pdfwriter writer = pdfwriter.getinstance(document, file);
      writer.closestream = false;
      writer.open();
      pdfcontentbyte cb = writer.directcontent;
      document.open();
      //标题
      paragraph title = new paragraph(new chunk("标题", titlefont));
      title.alignment = element.align_center;
      document.add(title);
      //图片
      itextsharp.text.image img = itextsharp.text.image.getinstance(image, imageformat.png);
      float widthszie = (page.width - 30) / img.width;
      if (widthszie < 1)
      {
        img.scalepercent(widthszie * 100);
      }
      document.add(img);
      //文献出处
      paragraph p2 = new paragraph(new chunk("出处", paragraphfont));
      p2.indentationleft = indentationleft;
      document.add(p2);
      initdata(list);//初始化业务数据
      createsteps(list, document, list.firstordefault(it => it.pid == 0));//添加业务数据
      ////添加印章
      //itextsharp.text.image whyz = itextsharp.text.image.getinstance(whyzpath);
      //whyz.scalepercent(50);
      //whyz.paddingtop = 100;
      //whyz.alignment = element.align_right;
      //document.add(whyz);
      //添加日期
      paragraph createtime = new paragraph(new chunk(datetime.now.tolongdatestring().tostring(), bodyfont));
      createtime.alignment = element.align_right;
      //createtime.spacingbefore = -80;
      createtime.paddingtop = 200;

      document.add(createtime);


      document.close();
      file.position = 0;
      memorystream newfile = setwatermark(file, "水印内容", docwidth, docheight);//添加水印，见另外一篇博客
      newfile.position = 0;//重置流指针位置
      byte[] bytes = new byte[newfile.length];
      newfile.read(bytes, 0, bytes.length);
      return bytes;
    }

以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持。