Question

int iNbFichier = 0;
while (File.Exists(folderName + "/" + newFile + ((iNbFichier > 0) ? "_" + iNbFichier.ToString() : "") + ext))
{
    iNbFichier++;
}

// open the reader
PdfReader reader = new PdfReader(oldFile);
document = new Document(PageSize.A4, 5, 5, 120, 60);

// open the writer
FileStream fs = new FileStream(folderName + "/" + newFile + ((iNbFichier > 0) ? "_" + iNbFichier.ToString() : "") + ext, FileMode.Create, FileAccess.Write);
PdfWriter writer = PdfWriter.GetInstance(document, fs);
document.Open();

int numberPage = reader.NumberOfPages;                            

// the pdf content
PdfContentByte cb = writer.DirectContent;

for (int i = 1; i <= reader.NumberOfPages; i++)
{
      // create the new page and add it to the pdf
      PdfImportedPage page = writer.GetImportedPage(reader, i);
      cb.AddTemplate(page, 0, 0);
      if(i != numberPage) document.NewPage();
      cb = writer.DirectContent;
}

if (availableSpace < 90)
{
      writer.NewPage();
      cb = writer.DirectContent;
}                            

// select the font properties
BaseFont bf = BaseFont.CreateFont(BaseFont.TIMES_ROMAN, BaseFont.CP1252, BaseFont.NOT_EMBEDDED);
cb.SetColorFill(BaseColor.BLACK);
cb.SetFontAndSize(bf, 8);

// write the text in the pdf content
cb.BeginText();
string text = "Le " + DateTime.Now.ToString().Substring(0, 10);
// put the alignment and coordinates here
cb.ShowTextAligned(1, text, 455, 750, 90);
cb.EndText();

// write the text in the pdf content
cb.BeginText();
text = salarie.NOM + " " + salarie.PRENOM;
// put the alignment and coordinates here
cb.ShowTextAligned(1, text, 465, 750, 90);
cb.EndText();

// write the text in the pdf content
cb.BeginText();
text = "Signature :";
// put the alignment and coordinates here
cb.ShowTextAligned(1, text, 475, 750, 90);
cb.EndText();

iTextSharp.text.Image img = iTextSharp.text.Image.GetInstance(globale.EncodePhoto(this.signature));
//img.SetAbsolutePosition(485, 750);

img.Border = 0;

//Resize picture to fit 380x150 ratio if its bigger
int intMaxWidth = 100;
int intMaxHeight = 50;
BitmapImage bmpMain = this.signature;
if (bmpMain.Height > intMaxHeight || bmpMain.Width > intMaxWidth)
{
      double dblHeightRatio = Convert.ToDouble(intMaxHeight) / Convert.ToDouble(bmpMain.Height);
      double dblWidthRatio = Convert.ToDouble(intMaxWidth) / Convert.ToDouble(bmpMain.Width);
      double dblScaleRatio;

      //Use the smaller ratio
      if (dblHeightRatio > dblWidthRatio)
      {
            dblScaleRatio = dblWidthRatio;
      }
      else
      {
            dblScaleRatio = dblHeightRatio;
      }

      int intNewHeight = Convert.ToInt32(bmpMain.Height * dblScaleRatio);
      int intNewWidth = Convert.ToInt32(bmpMain.Width * dblScaleRatio);

      img.ScaleAbsolute((float)intNewWidth,
                                                    (float)intNewHeight);
}

img.SetAbsolutePosition(480, 700);
img.RotationDegrees = 90;

cb.AddImage(img);                            

// close the streams and voilá the file should be changed :)
document.Close();
fs.Close();
writer.Close();
reader.Close();

如果我的表格和页脚的可用空间是＆lt;到90后我想创建一个新页面并将签名放在最后创建的页面上。

但我的代码不起作用。有人可以帮我解决这个问题吗？

我的申请是针对平板电脑的，因此复制处理需要太多资源才能在这种情况下使用。

Answer 1

string oldFile = "Tmp.pdf";
string newFile = nomFichier = DateTime.Now.ToString().
                              Substring(0,10).Replace('/','-') + 
                              "_" + salarie.NOM + "_" + salarie.PRENOM;
string ext = ".pdf";
string folderName = "FICHE_EPI";

//Si le tableau est trop bas pour faire passer la signature
if (availableSpace < 90) 
{
    var tempFileLocation = @"Tmp2.pdf";
    var bytes = File.ReadAllBytes(@"Tmp.pdf");

    using (var reader1 = new PdfReader(bytes))
    {
        var numberofPages = reader1.NumberOfPages;
        var pages = 1;

        if (pages != 0)
        {
            using (var fileStream = new FileStream(
                   tempFileLocation, 
                   FileMode.Create, 
                   FileAccess.Write))
            {
                using (var stamper = new PdfStamper(reader1, fileStream))
                {                                            
                    var rectangle = reader1.GetPageSize(1);
                    for (var i = 1; i <= pages; i++)
                        stamper.InsertPage(numberofPages + i, rectangle);
                }
            }
        }
    }
    File.Delete(@"Tmp.pdf");
    File.Move(tempFileLocation, @"Tmp.pdf");

这解决了我的问题。

使用C＃和iTextSharp将页面添加到现有PDF文档中

1 个答案: