private void button1_Click(object sender, EventArgs e)
{
String input = @"..\..\..\..\..\..\Data\SearchReplaceTemplate.pdf";
PdfDocument doc = new PdfDocument();
// Read a pdf file
doc.LoadFromFile(input);
// Get the first page of pdf file
PdfPageBase page = doc.Pages[0];
// Create PdfTextFindCollection object to find all the matched phrases
PdfTextFindCollection collection = page.FindText("e-iceblue", TextFindParameter.IgnoreCase);
// hyperlink url
String url = "http://www.e-iceblue.com";
foreach (PdfTextFind find in collection.Finds)
{
// Create a PdfUriAnnotation object to add hyperlink for the searched text
PdfUriAnnotation uri = new PdfUriAnnotation(find.Bounds);
uri.Uri = url;
uri.Border = new PdfAnnotationBorder(1f);
uri.Color = Color.Blue;
page.AnnotationsWidget.Add(uri);
}
String result = "SearchTextAndAddHyperlink_out.pdf";
//Save the document
doc.SaveToFile(result);
//Launch the Pdf file
PDFDocumentViewer(result);
}
private void button1_Click(object sender, EventArgs e)
{
String input = @"..\..\..\..\..\..\Data\SearchReplaceTemplate.pdf";
PdfDocument doc = new PdfDocument();
// Read a pdf file
doc.LoadFromFile(input);
// Get the first page of pdf file
PdfPageBase page = doc.Pages[0];
// Create PdfTextFindCollection object to find all the matched phrases
PdfTextFindCollection collection = page.FindText("Spire.PDF for .NET", TextFindParameter.IgnoreCase);
// Create a StringBuilder object to put the details of the text searched
StringBuilder builder = new StringBuilder();
foreach (PdfTextFind find in collection.Finds)
{
builder.AppendLine("==================================================================================");
builder.AppendLine("Match Text: " + find.MatchText);
builder.AppendLine("Text: " + find.SearchText);
builder.AppendLine("Size: " + find.Size);
builder.AppendLine("Position: " + find.Position);
builder.AppendLine("The index of page which is including the searched text : " + find.SearchPageIndex);
builder.AppendLine("The line that contains the searched text : " + find.LineText);
builder.AppendLine("Match Text: " + find.MatchText);
}
String result = "GetDetailsOfSearchedText_out.txt";
File.WriteAllText(result, builder.ToString());
//Launch the result file
DocumentViewer(result);
}
private void button1_Click(object sender, EventArgs e)
{
String input = @"..\..\..\..\..\..\Data\SearchReplaceTemplate.pdf";
PdfDocument doc = new PdfDocument();
// Read a pdf file
doc.LoadFromFile(input);
// Get the first page of pdf file
PdfPageBase page = doc.Pages[0];
// Create PdfTextFindCollection object to find all the matched phrases
PdfTextFindCollection collection = page.FindText("Spire.PDF for .NET", TextFindParameter.IgnoreCase);
foreach (PdfTextFind find in collection.Finds)
{
// Draw a rectangle with red pen
page.Canvas.DrawRectangle(new PdfPen(PdfBrushes.Red, 0.9f), find.Bounds);
}
String result = "SearchTextAndDrawRectangle_out.pdf";
//Save the document
doc.SaveToFile(result);
//Launch the Pdf file
PDFDocumentViewer(result);
}
static void Main(string[] args)
{
//Initialize an instance of PdfDocument class and load the file
PdfDocument doc = new PdfDocument();
doc.LoadFromFile(@"C:\Users\Administrator\Desktop\sample.pdf");
//Get the first page
PdfPageBase page = doc.Pages[0];
//Call the FindText() method to find the text which is needed to add annotation
PdfTextFind[] results = page.FindText("IPCC").Finds;
//Specify the location of annotation
float x = results[0].Position.X - doc.PageSettings.Margins.Top;
float y = results[0].Position.Y - doc.PageSettings.Margins.Left + results[0].Size.Height - 23;
//Create the pop-up annotation
RectangleF rect = new RectangleF(x, y, 15, 0);
PdfPopupAnnotation popupAnnotation = new PdfPopupAnnotation(rect);
//Add the text into the annotation and set the icon and color
popupAnnotation.Text = "IPCC,This is a scientific and intergovernmental body under the auspices of the United Nations.";
popupAnnotation.Icon = PdfPopupIcon.Help;
popupAnnotation.Color = Color.SandyBrown;
//Add the annotation to the PDF file
page.AnnotationsWidget.Add(popupAnnotation);
//Save the file and view
doc.SaveToFile("Annotation.pdf");
System.Diagnostics.Process.Start("Annotation.pdf");
}
//向签发日期后添加日期
/// <summary>
/// 向签发日期后添加日期
/// </summary>
/// <param name="oldPath"></param>
/// <param name="newPath"></param>
/// <param name="flagTxt">要查找的字符串</param>
/// <param name="issueDate">要写入的日期</param>
public void addIssueDateToPdf(string oldPath, string newPath, string flagTxt, string issueDate)
{
try
{
//Create a pdf document
PdfDocument doc = new PdfDocument();
doc.LoadFromFile(oldPath);
PdfPageBase page = null;
PdfTextFind[] result = null;
for (int i = 2; i < doc.Pages.Count; i++)
{
page = doc.Pages[i];
try
{
//pdfTextFindCollection = page.FindText(flagTxt);
//pdfTextFindCollection = page.ExecuteCommandFindText(flagTxt);
PdfTextFindCollection pdfTextFindCollection = page.FindText(flagTxt);
result = pdfTextFindCollection.Finds;
}catch (Exception ex)
{
classLims_NPOI.WriteLog("查询标记字符串时出错,可能是文件损坏或编码格式错误!\n"
+ ex.ToString(), "");
continue;
}
if (result.Length > 0)
{
break;
}
}
//如果没找到标记字符串,记录并返回
if (result == null || result.Length == 0)
{
classLims_NPOI.WriteLog("标记字符串未找到", "");
return;
}
//获取第一次出现文字的坐标，宽度和高度
PointF pointf = result[0].Position;
//获取文字的宽高
SizeF size = result[0].Size;
AlignText(page, issueDate, pointf.X + size.Width + 50, pointf.Y + 3);
//save pdf file
doc.SaveToFile(newPath);
doc.Close();
}
catch (Exception ex)
{
classLims_NPOI.WriteLog(ex, "");
}
}
private void button1_Click(object sender, EventArgs e)
{
String input = @"..\..\..\..\..\..\Data\SearchReplaceTemplate.pdf";
PdfDocument doc = new PdfDocument();
// Read a pdf file
doc.LoadFromFile(input);
// Get the first page of pdf file
PdfPageBase page = doc.Pages[0];
// Create PdfTextFindCollection object to find all the phrases matching the regular expression
PdfTextFindCollection collection = page.FindText("\\d{4}", TextFindParameter.IgnoreCase);
String newText = "New Year";
// Creates a brush
PdfBrush brush = new PdfSolidBrush(Color.DarkBlue);
// Defines a font
PdfTrueTypeFont font = new PdfTrueTypeFont(new Font("Arial", 7f, FontStyle.Bold));
// Defines text horizontal/vertical center format
PdfStringFormat centerAlign = new PdfStringFormat(PdfTextAlignment.Center, PdfVerticalAlignment.Middle);
RectangleF rec;
foreach (PdfTextFind find in collection.Finds)
{
// Gets the bound of the found text in page
rec = find.Bounds;
page.Canvas.DrawRectangle(PdfBrushes.GreenYellow, rec);
// Draws new text as defined font and color
page.Canvas.DrawString(newText, font, brush, rec, centerAlign);
// This method can directly replace old text with newText,but it just can set the background color, can not set font/forecolor
// find.ApplyRecoverString(newText, Color.Gray);
}
String result = "ReplaceTextWithRegularExpression_out.pdf";
//Save the document
doc.SaveToFile(result);
//Launch the Pdf file
PDFDocumentViewer(result);
}
private void button1_Click(object sender, EventArgs e)
{
String input = @"..\..\..\..\..\..\Data\SearchReplaceTemplate.pdf";
PdfDocument doc = new PdfDocument();
// Read a pdf file
doc.LoadFromFile(input);
// Get the first page of pdf file
PdfPageBase page = doc.Pages[0];
// Searches "Spire.PDF for .NET" by ignoring case
PdfTextFindCollection collection = page.FindText("Spire.PDF for .NET", TextFindParameter.IgnoreCase);
String newText = "E-iceblue Spire.PDF";
// Creates a brush
PdfBrush brush = new PdfSolidBrush(Color.DarkBlue);
// Defines a font
PdfTrueTypeFont font = new PdfTrueTypeFont(new Font("Arial", 12f, FontStyle.Regular));
RectangleF rec;
foreach (PdfTextFind find in collection.Finds)
{
// Gets the bound of the found text in page
rec = find.Bounds;
page.Canvas.DrawRectangle(PdfBrushes.White, rec);
// Draws new text as defined font and color
page.Canvas.DrawString(newText, font, brush, rec);
// This method can directly replace old text with newText,but it just can set the background color, can not set font/forecolor
// find.ApplyRecoverString(newText, Color.Gray);
}
String result = "ReplaceAllSearchedText_out.pdf";
//Save the document
doc.SaveToFile(result);
//Launch the Pdf file
PDFDocumentViewer(result);
}
public MemoryStream FillReport(Student student, ReportDetails details)
{
List <string> tagsToFind = new List <string>()
{
"$subject", "$topicno", "$author", "$teacher", "$year", "$major", "$typeofstudies", "$semester", "$labdate", "$group", "$section", "$deadlinedate", "$returneddate"
};
foreach (String tag in tagsToFind)
{
PdfPageBase page = template.Pages[0];
PdfTextFind location = page.FindText(tag, TextFindParameter.None)?.Finds[0];
if (location != null)
{
string replacement;
PdfTrueTypeFont font;
switch (tag)
{
case "$subject": replacement = details.Subject;
font = new PdfTrueTypeFont(new Font("Calibri", 18f, FontStyle.Bold)); break;
case "$topicno": replacement = details.TopicNo.ToString();
font = new PdfTrueTypeFont(new Font("Calibri", 18f, FontStyle.Regular)); break;
case "$author": replacement = student.Name;
font = new PdfTrueTypeFont(new Font("Calibri", 12f, FontStyle.Regular)); break;
case "$teacher": replacement = details.TeacherName;
font = new PdfTrueTypeFont(new Font("Calibri", 12f, FontStyle.Regular)); break;
case "$year": replacement = DateTime.Now.Month < 10 ? (DateTime.Now.Year - 1).ToString() + "/" + DateTime.Now.Year.ToString() : DateTime.Now.Year.ToString() + "/" + (DateTime.Now.Year + 1).ToString();
font = new PdfTrueTypeFont(new Font("Calibri", 12f, FontStyle.Regular)); break;
case "$major": replacement = student.Major;
font = new PdfTrueTypeFont(new Font("Calibri", 12f, FontStyle.Regular)); break;
case "$typeofstudies": replacement = student.TypeOfStudies;
font = new PdfTrueTypeFont(new Font("Calibri", 12f, FontStyle.Regular)); break;
case "$semester": replacement = student.Semester.ToString();
font = new PdfTrueTypeFont(new Font("Calibri", 12f, FontStyle.Regular)); break;
case "$labdate": replacement = details.LabDate.ToString();
font = new PdfTrueTypeFont(new Font("Calibri", 12f, FontStyle.Regular)); break;
case "$group": replacement = student.Group.ToString();
font = new PdfTrueTypeFont(new Font("Calibri", 12f, FontStyle.Regular)); break;
case "$section": replacement = student.Section.ToString();
font = new PdfTrueTypeFont(new Font("Calibri", 12f, FontStyle.Regular)); break;
case "$deadlinedate": replacement = details.DeadlineDate.ToString("dd/MM/yy");
font = new PdfTrueTypeFont(new Font("Calibri", 12f, FontStyle.Regular)); break;
case "$returneddate": replacement = DateTime.Now.ToString("dd/MM/yy");
font = new PdfTrueTypeFont(new Font("Calibri", 12f, FontStyle.Regular)); break;
default: replacement = "ERROR"; font = new PdfTrueTypeFont(new Font("Calibri", 12f, FontStyle.Underline)); break;
}
RectangleF rec = location.Bounds;
page.Canvas.DrawRectangle(PdfBrushes.White, rec);
page.Canvas.DrawString(replacement, font, PdfBrushes.Black, new PointF(rec.Left, rec.Top - 3f));
}
}
//template.SaveToFile("C:\\Users\\Lenovo\\source\\repos\\ApiConcept\\ApiConcept\\Templates\\report.pdf");
MemoryStream stream = new MemoryStream();
template.SaveToStream(stream);
return(stream);
}
public ActionResult Hash(string certUserBase64 = "", string fileName = "", int LoaiChuKy = 0, int numberPage = 1)
{
var statusResultHashFile = "error";
var descErrorHashFile = "";
var serialNumber = "";
var hashBase64 = "";
try
{
if (certUserBase64 == null || certUserBase64.Trim().Length == 0)
{
descErrorHashFile = "Cert Chain is empty";
return(Json(new
{
statusResultHashFile = statusResultHashFile,
descErrorHashFile = descErrorHashFile,
serialNumber = "",
hashBase64 = ""
}, JsonRequestBehavior.AllowGet));
}
if (fileName == null || fileName.Trim().Length == 0 || fileName.IndexOf(".pdf") == -1)
{
descErrorHashFile = "Chưa chọn File cần ký";
return(Json(new
{
statusResultHashFile = statusResultHashFile,
descErrorHashFile = descErrorHashFile,
serialNumber = "",
hashBase64 = ""
}, JsonRequestBehavior.AllowGet));
}
//Get the servers upload directory real path name
string HCC_FILE_PDF = GetUrlFileDefaut();
string fileFullPath = Path.Combine(HCC_FILE_PDF, fileName);
bool exists = System.IO.File.Exists(fileFullPath);
if (!exists)
{
descErrorHashFile = "File không tồn tại";
return(Json(new
{
statusResultHashFile = statusResultHashFile,
descErrorHashFile = descErrorHashFile,
serialNumber = "",
hashBase64 = ""
}, JsonRequestBehavior.AllowGet));
}
string[] stringSeparators = new string[] { "," };
String[] chainBase64 = certUserBase64.Split(stringSeparators, StringSplitOptions.RemoveEmptyEntries);
if (chainBase64 == null || chainBase64.Length == 0)
{
descErrorHashFile = "Lấy Chứng thư số không thành công";
return(Json(new
{
statusResultHashFile = statusResultHashFile,
descErrorHashFile = descErrorHashFile,
serialNumber = "",
hashBase64 = ""
}, JsonRequestBehavior.AllowGet));
}
X509Certificate x509Cert = CertUtils.GetX509Cert(chainBase64[0]);
//Check chứng thư số còn giá trị
//#if DEBUG
//#else
// var tokenValid = x509Cert.IsValidNow;
// if (tokenValid != true)
// {
// descErrorHashFile = "Chứng thư số đã hết hiệu lực.";
// return Json(new
// {
// statusResultHashFile = statusResultHashFile,
// descErrorHashFile = descErrorHashFile,
// serialNumber = "",
// hashBase64 = ""
// }, JsonRequestBehavior.AllowGet);
// }
//#endif
if (x509Cert == null)
{
descErrorHashFile = "Lấy Chứng thư số không thành công";
return(Json(new
{
statusResultHashFile = statusResultHashFile,
descErrorHashFile = descErrorHashFile,
serialNumber = "",
hashBase64 = ""
}, JsonRequestBehavior.AllowGet));
}
X509Certificate certCA = null;
if (chainBase64.Length > 1)
{
certCA = CertUtils.GetX509Cert(chainBase64[1]);
}
X509Certificate[] certChain = null;
if (certCA != null)
{
certChain = new X509Certificate[] { x509Cert, certCA };
}
else
{
string certViettelCABase64 = "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";
X509Certificate certViettelCA = CertUtils.GetX509Cert(certViettelCABase64);
if (certViettelCA != null)
{
certChain = new X509Certificate[] { x509Cert, certViettelCA };
}
}
if (certChain == null || certChain.Length != 2)
{
descErrorHashFile = "Lấy Chứng thư số không thành công. Không lấy được CTS CA.";
return(View());
}
String base64Hash = null;
//Trước khi insert thì kiểm tra chữ ký
if (LoaiChuKy == 0)
{
//Lấy ra các loại chữ ký
var lstChuKy = (from t in _chuKyRepos.GetAll() where t.IsActive == true && t.UserId == UserSession.Id select t).ToList();
if (lstChuKy.Count == 0)
{
descErrorHashFile = "Người dùng chưa import chữ ký, Vui lòng import chữ ký";
return(Json(new
{
statusResultHashFile = statusResultHashFile,
descErrorHashFile = descErrorHashFile,
serialNumber = "",
hashBase64 = ""
}, JsonRequestBehavior.AllowGet));
}
if (lstChuKy.Count > 0)
{
int trangky = 1;
float vitrix = 0;
float vitriy = 0;
float widthImg = 0;
float heightImg = 0;
Spire.Pdf.PdfDocument doc = new Spire.Pdf.PdfDocument();
doc.LoadFromFile(fileFullPath);
PdfTextFind[] results = null;
int checkChuKy = 0;
for (int k = 0; k < doc.Pages.Count; k++)
{
PdfPageBase page = doc.Pages[k];
for (int i = 0; i < lstChuKy.Count; i++)
{
var machu = "ATTP_" + lstChuKy[i].MaChuKy;
results = page.FindText(machu).Finds;
if (results.Length > 0)
{
foreach (PdfTextFind text in results)
{
var ImageData = lstChuKy[i].DataImage;
var urlImage = (Path.Combine(HCC_FILE_PDF, lstChuKy[i].UrlImage));
if (!string.IsNullOrEmpty(urlImage))
{
if (!System.IO.File.Exists(urlImage))
{
descErrorHashFile = "Chữ ký người dùng chưa import";
return(Json(new
{
statusResultHashFile = statusResultHashFile,
descErrorHashFile = descErrorHashFile,
serialNumber = "",
hashBase64 = ""
}, JsonRequestBehavior.AllowGet));
}
ImageData = System.IO.File.ReadAllBytes(urlImage);
}
//System.Drawing.Image image = null;
//using (var ms = new MemoryStream(ImageData))
//{
// image = Image.FromStream(ms);
//}
trangky = k + 1;
vitrix = text.Position.X;
vitriy = page.Size.Height - text.Position.Y - 20;
widthImg = 80;
heightImg = 40;
if (lstChuKy[i].LoaiChuKy == (int)CommonENum.LOAI_CHU_KY.CHU_KY)
{
if (machu == "ATTP_CK_1_1")
{
widthImg = 171;
heightImg = 100;
vitrix = text.Position.X - 30;
vitriy = page.Size.Height - text.Position.Y - 80;
}
else
{
widthImg = 80;
heightImg = 40;
vitriy = page.Size.Height - text.Position.Y - 20;
}
//điều chỉnh kích thước theo cấu hình của chữ ký
if (lstChuKy[i].ChieuRong.HasValue && lstChuKy[i].ChieuRong > 0)
{
widthImg = lstChuKy[i].ChieuRong.Value;
}
if (lstChuKy[i].ChieuCao.HasValue && lstChuKy[i].ChieuCao > 0)
{
heightImg = lstChuKy[i].ChieuCao.Value;
}
}
if (lstChuKy[i].LoaiChuKy == (int)CommonENum.LOAI_CHU_KY.DAU_CUA_CUC)
{
widthImg = 75;
heightImg = 75;
vitrix = text.Position.X - (widthImg / 2);
vitriy = page.Size.Height - text.Position.Y - heightImg;
}
base64Hash = HashFilePDF.GetHashTypeImage_ExistedSignatureField(fileFullPath, certChain, k + 1, urlImage, vitrix, vitriy, widthImg, heightImg);
checkChuKy = 1;
}
}
}
}
if (checkChuKy == 0)
{
base64Hash = HashFilePDF.GetHashTypeRectangleText(1, fileFullPath, certChain);
}
}
}
else if (LoaiChuKy == 1)
{
base64Hash = HashFilePDF.GetHashTypeRectangleText(numberPage, fileFullPath, certChain);
}
else
{
base64Hash = HashFilePDF.GetHashTypeRectangleText(numberPage, fileFullPath, certChain);
}
if (base64Hash == null)
{
descErrorHashFile = "Tạo Hash không thành công";
return(View());
}
statusResultHashFile = "success";
serialNumber = x509Cert.SerialNumber.ToString(16);
hashBase64 = base64Hash;
return(Json(new
{
statusResultHashFile = statusResultHashFile,
descErrorHashFile = descErrorHashFile,
serialNumber = serialNumber,
hashBase64 = hashBase64
}, JsonRequestBehavior.AllowGet));
}
catch (Exception)
{
descErrorHashFile = "Lỗi trong quá trình xử lý";
return(Json(new
{
statusResultHashFile = statusResultHashFile,
descErrorHashFile = descErrorHashFile,
serialNumber = "",
hashBase64 = ""
}, JsonRequestBehavior.AllowGet));
}
}
//向PDF指定位置添加图片
/// <summary>
/// 向PDF指定位置添加图片
/// </summary>
/// <param name="filePath"></param>
/// <param name="newPath"></param>
/// <param name="flagTxt">标记字符串</param>
/// <param name="BlobFiled">图片字符串</param>
/// <param name="imgHeight">图片高度,为0时使用图片原始高度</param>
/// <param name="imgWidth">图片宽度,为0时使用图片原始宽度</param>
public void addImage2Pdf(string filePath, string newPath, string flagTxt, string BlobFiled, float imgWidth, float imgHeight)
{
try
{
//Create a pdf document
PdfDocument doc = new PdfDocument();
doc.LoadFromFile(filePath);
//get the page
PdfPageBase page = doc.Pages[0];
//获取文本在PdfPage的坐标
PointF pointf = new PointF();
PdfTextFind[] result = page.FindText(flagTxt).Finds;
//如果没找到标记字符串,直接返回
if (result.Length == 0)
{
classLims_NPOI.WriteLog("标记字符串未找到", "");
return;
}
//获取第一次出现文字的坐标，宽度和高度
pointf = result[0].Position;
//获取文字的宽高
SizeF size = result[0].Size;
byte[] numArray = System.Text.Encoding.UTF8.GetBytes(BlobFiled);
if (numArray == null)
{
classLims_NPOI.WriteLog("字节数组为空", "");
return;
}
PdfImage image = PdfImage.FromStream(new MemoryStream(numArray));
float width = imgWidth;
float height = imgHeight;
if (imgWidth == 0)
{
width = image.Width;
}
if (imgHeight == 0)
{
height = image.Height;
}
//签名图片Y轴位置为 始终和标记字符串居中对齐
pointf.Y = pointf.Y - (height - size.Height) / 2;
//insert image
page.Canvas.DrawImage(image, pointf.X, pointf.Y, width, height);
//save pdf file
doc.SaveToFile(newPath);
doc.Close();
}
catch (Exception ex)
{
classLims_NPOI.WriteLog(ex, "");
}
}
//向PDF指定位置添加图片
/// <summary>
/// 向PDF指定位置添加图片,按照标记字符串
/// </summary>
/// <param name="filePath"></param>
/// <param name="newPath"></param>
/// <param name="flagTxt">标记字符串</param>
/// <param name="imgPath">图片路径</param>
/// <param name="imgHeight">图片高度,为0时使用图片原始高度</param>
/// <param name="imgWidth">图片宽度,为0时使用图片原始宽度</param>
public void addImage2Pdf_path(string filePath, string newPath, string flagTxt, string imgPath, float imgWidth, float imgHeight)
{
try
{
//Create a pdf document
PdfDocument doc = new PdfDocument();
doc.LoadFromFile(filePath);
PdfPageBase page = null;
PdfTextFind[] result = null;
for (int i = 0; i < doc.Pages.Count; i++)
{
page = doc.Pages[i];
PdfTextFindCollection pdfTextFindCollection = null;
//pdfTextFindCollection = page.FindText(flagTxt);
//pdfTextFindCollection = page.ExecuteCommandFindText(flagTxt);
pdfTextFindCollection = page.FindText(flagTxt);
if (pdfTextFindCollection == null)
{
continue;
}
result = pdfTextFindCollection.Finds;
if (result.Length > 0)
{
break;
}
}
//如果没找到标记字符串,记录并返回
if (result == null || result.Length == 0)
{
classLims_NPOI.WriteLog("标记字符串未找到", "");
return;
}
//获取第一次出现文字的坐标，宽度和高度
PointF pointf = result[0].Position;
//获取文字的宽高
SizeF size = result[0].Size;
if (!File.Exists(imgPath))
{
classLims_NPOI.WriteLog("图片文件未找到", "");
return;
}
PdfImage image = PdfImage.FromFile(imgPath);
float width = imgWidth;
float height = imgHeight;
if (imgWidth == 0)
{
width = image.Width;
}
if (imgHeight == 0)
{
height = image.Height;
}
//签名图片Y轴位置为 始终和标记字符串居中对齐
pointf.Y = pointf.Y - (height - size.Height) / 2;
//insert image
page.Canvas.DrawImage(image, pointf.X, pointf.Y, width, height);
//save pdf file
doc.SaveToFile(newPath);
doc.Close();
}
catch (Exception ex)
{
classLims_NPOI.WriteLog(ex, "");
}
}