基于iTextSharp的PDF文档操作

private static pdfText.pdf.PdfPTable CreatePdfPTableToPickupLabel(List<TradeDetailModel> listDetail, iTextSharp.text.Font font)
{
    pdfText.pdf.PdfPTable pdtTable = new pdfText.pdf.PdfPTable(5);
    pdtTable.WidthPercentage = 95;      //占宽度百分比:95%（这句很关键，作用是撑满整个面单）

    int[] colWidth = { 2, 4, 2, 2, 2 }; //设置列宽比例
    pdtTable.SetWidths(colWidth);

    //此处,先插入首行,即标题
    pdtTable.AddCell(new iTextSharp.text.Phrase("图片", font));
    pdtTable.AddCell(new iTextSharp.text.Phrase("基本信息", font));
    pdtTable.AddCell(new iTextSharp.text.Phrase("单价", font));
    pdtTable.AddCell(new iTextSharp.text.Phrase("数量", font));
    pdtTable.AddCell(new iTextSharp.text.Phrase("备注", font));

    //再插入真实拣货数据
    int rowCount = listDetail.Count;
    for (int i = 0; i < rowCount; i++)
    {
        TradeDetailModel modelDetail = listDetail[i];

        iTextSharp.text.Image image = PdfUtil.CreatePdfImage(modelDetail.ProductImageBytes);
        pdtTable.AddCell(image);
        pdtTable.AddCell(new iTextSharp.text.Phrase(modelDetail.ProductBase, font));
        pdtTable.AddCell(new iTextSharp.text.Phrase(modelDetail.Price.ToString() + Environment.NewLine + modelDetail.ProductID, font));
        pdtTable.AddCell(new iTextSharp.text.Phrase(modelDetail.Number.ToString() + Environment.NewLine + modelDetail.ProductSpec, font));
        pdtTable.AddCell(new iTextSharp.text.Phrase(modelDetail.Remark, font));
    }

    return pdtTable;
}

/// <summary>
/// 创建Pdf所需图像
/// </summary>
/// <param name="imageBytes"></param>
/// <param name="widthS"></param>
/// <param name="heightS"></param>
/// <returns></returns>
private static iTextSharp.text.Image CreatePdfImage(byte[] imageBytes, float widthS = 60f, float heightS = 60f)
{
    iTextSharp.text.Image image = iTextSharp.text.Image.GetInstance(imageBytes);

    //图片大小要求统一80x80,需根据实际图片        
    float perW = (float)Math.Round(widthS / image.Width, 2);
    float perH = (float)Math.Round(heightS / image.Height, 2);
    image.ScalePercent(perW * 100, perH * 100);

    //设置Dpi值,能够清晰些
    image.SetDpi(124, 124);

    return image;
}　　

/// <summary>
/// 创建Pdf所需字体
/// </summary>
/// <returns></returns>
public static iTextSharp.text.Font CreatePdfFont(float fontSize = 16F)
{
    //黑体
    string fontPath = @"C:\Windows\Fonts\simhei.ttf";

    iTextSharp.text.pdf.BaseFont baseFont = iTextSharp.text.pdf.BaseFont.CreateFont(fontPath,
        iTextSharp.text.pdf.BaseFont.IDENTITY_H,
        iTextSharp.text.pdf.BaseFont.NOT_EMBEDDED);
    iTextSharp.text.Font font = new iTextSharp.text.Font(baseFont, fontSize);

    return font;
}

/// <summary>
/// 生成拣货标签pdf文件
/// </summary>
/// <param name="modelTrade"></param>
/// <param name="dhlLabelFolderName"></param>
/// <returns></returns>
public static string CreatePickupLabel(TradeModel modelTrade,string dhlLabelFolderName)
{
    //参考地址
    //https://www.cnblogs.com/yangy1989/p/5300304.html
    //http://blog.csdn.net/lideyuans/article/details/51536676 (设置图片百分比)

    //组装,待生成的pdf文件完整路径
    string logisticsNo = modelTrade.R;
    string pdfFileName = dhlLabelFolderName + logisticsNo + "_Label.pdf";

    FileStream fs = new FileStream(pdfFileName, FileMode.Create);
    pdfText.Rectangle rect = new pdfText.Rectangle(0f, 0f, 1000f, 1000f);
    pdfText.Document document = new pdfText.Document(rect, 5f, 5f, 5f, 5f);

    //创建字体
    iTextSharp.text.Font font = PdfUtil.CreatePdfFont(34F);

    pdfText.pdf.PdfWriter pdfWriter = pdfText.pdf.PdfWriter.GetInstance(document, fs);
    document.Open();

    //增加拣货单品列表
    pdfText.pdf.PdfPTable pdfpTable = PdfUtil.CreatePdfPTableToPickupLabel(modelTrade.Details, font);
    document.Add(pdfpTable);

    //增加品名备注            
    pdfText.Paragraph pgraph1 = new pdfText.Paragraph(modelTrade.ItemsDescription, font);
    document.Add(pgraph1);

    //增加:发货期限
    font.Color = pdfText.BaseColor.RED;
    pdfText.Paragraph pgraph2 = new pdfText.Paragraph(modelTrade.ShipLimitTimeText, font);
    document.Add(pgraph2);

    document.Close();
    fs.Close();

    return pdfFileName;
}

//直接调用cmd命令,实现直接打印
foreach (string printFile in listPrintFile)
{
    Process proc = new Process();
    proc.StartInfo.CreateNoWindow = false;
    proc.StartInfo.WindowStyle = System.Diagnostics.ProcessWindowStyle.Hidden;
    proc.StartInfo.UseShellExecute = true;
    proc.StartInfo.FileName = printFile;
    proc.StartInfo.Verb = "print";
    proc.Start();
    proc.Close();
}