/// <summary>
/// 将Html文字 输出到PDF
/// </summary>
/// <param name="htmlText"></param>
/// <returns></returns>
public static byte[] ConvertHtmlTextToPDF(string htmlText)
{
if (string.IsNullOrEmpty(htmlText))
{
return null;
}
MemoryStream outputStream = new MemoryStream();//要把PDF写到哪个串流
byte[] data = Encoding.UTF8.GetBytes(htmlText);//字串转成byte[]
MemoryStream msInput = new MemoryStream(data);
Document doc = new Document();//要写PDF的文件，建构子没填的话预设直式A4
PdfWriter writer = PdfWriter.GetInstance(doc, outputStream);
//指定文件预设开档时的缩放为100%
//PdfDestination pdfDest = new PdfDestination(PdfDestination.XYZ, 0, doc.PageSize.Height, 1f);
//开启Document文件
doc.Open();
//使用XMLWorkerHelper把Html parse到PDF档里
XMLWorkerHelper.GetInstance().ParseXHtml(writer, doc, msInput, null, Encoding.UTF8, new UnicodeFontFactory());
//将pdfDest设定的资料写到PDF档
//PdfAction action = PdfAction.GotoLocalPage(1, pdfDest, writer);
//writer.SetOpenAction(action);
doc.Close();
msInput.Close();
outputStream.Close();
return outputStream.ToArray();
}
//设置字体类
public class UnicodeFontFactory : FontFactoryImp
{
private static readonly string arialFontPath = Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.Fonts),
"arialuni.ttf");//arial unicode MS是完整的unicode字型。
public override Font GetFont(string fontname, string encoding, bool embedded, float size, int style, BaseColor color, bool cached)
{
BaseFont bfChiness = BaseFont.CreateFont(@"C:\Windows\Fonts\SIMSUN.TTC,1", BaseFont.IDENTITY_H, BaseFont.NOT_EMBEDDED);
//可用Arial或标楷体，自己选一个
BaseFont baseFont = BaseFont.CreateFont(arialFontPath, BaseFont.IDENTITY_H, BaseFont.EMBEDDED);
return new Font(bfChiness, size, style, color);
}
}