private async void cmdSaveAsPdf_Click(object sender, EventArgs e)
{
using (new CursorWait(this))
{
// Check to see if we have any "Print to PDF" printers, as they will be a lot more reliable than wkhtmltopdf
string strPdfPrinter = string.Empty;
foreach (string strPrinter in PrinterSettings.InstalledPrinters)
{
if (strPrinter == "Microsoft Print to PDF" || strPrinter == "Foxit Reader PDF Printer" ||
strPrinter == "Adobe PDF")
{
strPdfPrinter = strPrinter;
break;
}
}
if (!string.IsNullOrEmpty(strPdfPrinter))
{
DialogResult ePdfPrinterDialogResult = Program.MainForm.ShowMessageBox(this,
string.Format(GlobalSettings.CultureInfo,
await LanguageManager.GetStringAsync("Message_Viewer_FoundPDFPrinter"), strPdfPrinter),
await LanguageManager.GetStringAsync("MessageTitle_Viewer_FoundPDFPrinter"),
MessageBoxButtons.YesNoCancel, MessageBoxIcon.Information);
switch (ePdfPrinterDialogResult)
{
case DialogResult.Cancel:
case DialogResult.Yes when DoPdfPrinterShortcut(strPdfPrinter):
return;
case DialogResult.Yes:
Program.MainForm.ShowMessageBox(this,
await LanguageManager.GetStringAsync("Message_Viewer_PDFPrinterError"));
break;
}
}
// Save the generated output as PDF.
SaveFileDialog1.Filter = await LanguageManager.GetStringAsync("DialogFilter_Pdf") + '|' +
await LanguageManager.GetStringAsync("DialogFilter_All");
SaveFileDialog1.Title = await LanguageManager.GetStringAsync("Button_Viewer_SaveAsPdf");
SaveFileDialog1.ShowDialog();
string strSaveFile = SaveFileDialog1.FileName;
if (string.IsNullOrEmpty(strSaveFile))
{
return;
}
if (!strSaveFile.EndsWith(".pdf", StringComparison.OrdinalIgnoreCase))
{
strSaveFile += ".pdf";
}
if (!Directory.Exists(Path.GetDirectoryName(strSaveFile)) || !Utils.CanWriteToPath(strSaveFile))
{
Program.MainForm.ShowMessageBox(this,
string.Format(GlobalSettings.CultureInfo,
await LanguageManager.GetStringAsync(
"Message_File_Cannot_Be_Accessed"), strSaveFile));
return;
}
if (!await Utils.SafeDeleteFileAsync(strSaveFile, true))
{
Program.MainForm.ShowMessageBox(this,
string.Format(GlobalSettings.CultureInfo,
await LanguageManager.GetStringAsync(
"Message_File_Cannot_Be_Accessed"), strSaveFile));
return;
}
// No PDF printer found, let's use wkhtmltopdf
try
{
PdfDocument objPdfDocument = new PdfDocument
{
Html = webViewer.DocumentText,
ExtraParams = new Dictionary <string, string>(8)
{
{ "encoding", "UTF-8" },
{ "dpi", "300" },
{ "margin-top", "13" },
{ "margin-bottom", "19" },
{ "margin-left", "13" },
{ "margin-right", "13" },
{ "image-quality", "100" },
{ "print-media-type", string.Empty }
}
};
PdfConvertEnvironment objPdfConvertEnvironment = new PdfConvertEnvironment
{
WkHtmlToPdfPath = Path.Combine(Utils.GetStartupPath, "wkhtmltopdf.exe")
};
PdfOutput objPdfOutput = new PdfOutput {
OutputFilePath = strSaveFile
};
await PdfConvert.ConvertHtmlToPdfAsync(objPdfDocument, objPdfConvertEnvironment, objPdfOutput);
if (!string.IsNullOrWhiteSpace(GlobalSettings.PdfAppPath))
{
Uri uriPath = new Uri(strSaveFile);
string strParams = GlobalSettings.PdfParameters
.Replace("{page}", "1")
.Replace("{localpath}", uriPath.LocalPath)
.Replace("{absolutepath}", uriPath.AbsolutePath);
ProcessStartInfo objPdfProgramProcess = new ProcessStartInfo
{
FileName = GlobalSettings.PdfAppPath,
Arguments = strParams,
WindowStyle = ProcessWindowStyle.Hidden
};
objPdfProgramProcess.Start();
}
}
catch (Exception ex)
{
Program.MainForm.ShowMessageBox(this, ex.ToString());
}
}
}
public static void ConvertHtmlToPdf(PdfDocument document, PdfConvertEnvironment environment, PdfOutput woutput)
{
if (environment == null)
{
environment = Environment;
}
if (document.Html != null)
{
document.Url = "-";
}
String outputPdfFilePath;
bool delete;
if (woutput.OutputFilePath != null)
{
outputPdfFilePath = woutput.OutputFilePath;
delete = false;
}
else
{
outputPdfFilePath = Path.Combine(environment.TempFolderPath, String.Format("{0}.pdf", Guid.NewGuid()));
delete = true;
}
if (!File.Exists(environment.WkHtmlToPdfPath))
{
throw new PdfConvertException(String.Format("File '{0}' not found. Check if wkhtmltopdf application is installed.", environment.WkHtmlToPdfPath));
}
StringBuilder paramsBuilder = new StringBuilder();
paramsBuilder.Append("--page-size A4 ");
if (!string.IsNullOrEmpty(document.HeaderUrl))
{
paramsBuilder.AppendFormat("--header-html {0} ", document.HeaderUrl);
paramsBuilder.Append("--margin-top 25 ");
paramsBuilder.Append("--header-spacing 5 ");
}
if (!string.IsNullOrEmpty(document.FooterUrl))
{
paramsBuilder.AppendFormat("--footer-html {0} ", document.FooterUrl);
paramsBuilder.Append("--margin-bottom 25 ");
paramsBuilder.Append("--footer-spacing 5 ");
}
if (!string.IsNullOrEmpty(document.HeaderLeft))
{
paramsBuilder.AppendFormat("--header-left \"{0}\" ", document.HeaderLeft);
}
if (!string.IsNullOrEmpty(document.HeaderCenter))
{
paramsBuilder.AppendFormat("--header-center \"{0}\" ", document.HeaderCenter);
}
if (!string.IsNullOrEmpty(document.HeaderRight))
{
paramsBuilder.AppendFormat("--header-right \"{0}\" ", document.HeaderRight);
}
if (!string.IsNullOrEmpty(document.FooterLeft))
{
paramsBuilder.AppendFormat("--footer-left \"{0}\" ", document.FooterLeft);
}
if (!string.IsNullOrEmpty(document.FooterCenter))
{
paramsBuilder.AppendFormat("--footer-center \"{0}\" ", document.FooterCenter);
}
if (!string.IsNullOrEmpty(document.FooterRight))
{
paramsBuilder.AppendFormat("--footer-right \"{0}\" ", document.FooterRight);
}
if (!string.IsNullOrEmpty(document.HeaderFontSize))
{
paramsBuilder.AppendFormat("--header-font-size \"{0}\" ", document.HeaderFontSize);
}
if (!string.IsNullOrEmpty(document.FooterFontSize))
{
paramsBuilder.AppendFormat("--footer-font-size \"{0}\" ", document.FooterFontSize);
}
if (!string.IsNullOrEmpty(document.HeaderFontName))
{
paramsBuilder.AppendFormat("--header-font-name \"{0}\" ", document.HeaderFontName);
}
if (!string.IsNullOrEmpty(document.FooterFontName))
{
paramsBuilder.AppendFormat("--footer-font-name \"{0}\" ", document.FooterFontName);
}
if (document.ExtraParams != null)
{
foreach (var extraParam in document.ExtraParams)
{
paramsBuilder.AppendFormat("--{0} {1} ", extraParam.Key, extraParam.Value);
}
}
if (document.Cookies != null)
{
foreach (var cookie in document.Cookies)
{
paramsBuilder.AppendFormat("--cookie {0} {1} ", cookie.Key, cookie.Value);
}
}
paramsBuilder.AppendFormat("\"{0}\" \"{1}\"", document.Url, outputPdfFilePath);
try
{
StringBuilder output = new StringBuilder();
StringBuilder error = new StringBuilder();
using (Process process = new Process())
{
process.StartInfo.FileName = environment.WkHtmlToPdfPath;
process.StartInfo.Arguments = paramsBuilder.ToString();
process.StartInfo.UseShellExecute = false;
process.StartInfo.RedirectStandardOutput = true;
process.StartInfo.RedirectStandardError = true;
process.StartInfo.RedirectStandardInput = true;
using (AutoResetEvent outputWaitHandle = new AutoResetEvent(false))
using (AutoResetEvent errorWaitHandle = new AutoResetEvent(false))
{
DataReceivedEventHandler outputHandler = (sender, e) =>
{
if (e.Data == null)
{
outputWaitHandle.Set();
}
else
{
output.AppendLine(e.Data);
}
};
DataReceivedEventHandler errorHandler = (sender, e) =>
{
if (e.Data == null)
{
errorWaitHandle.Set();
}
else
{
error.AppendLine(e.Data);
}
};
process.OutputDataReceived += outputHandler;
process.ErrorDataReceived += errorHandler;
try
{
process.Start();
process.BeginOutputReadLine();
process.BeginErrorReadLine();
if (document.Html != null)
{
using (var stream = process.StandardInput)
{
byte[] buffer = Encoding.UTF8.GetBytes(document.Html);
stream.BaseStream.Write(buffer, 0, buffer.Length);
stream.WriteLine();
}
}
if (process.WaitForExit(environment.Timeout) && outputWaitHandle.WaitOne(environment.Timeout) && errorWaitHandle.WaitOne(environment.Timeout))
{
if (process.ExitCode != 0 && !File.Exists(outputPdfFilePath))
{
throw new PdfConvertException(String.Format("Html to PDF conversion of '{0}' failed. Wkhtmltopdf output: \r\n{1}", document.Url, error));
}
}
else
{
if (!process.HasExited)
{
process.Kill();
}
throw new PdfConvertTimeoutException();
}
}
finally
{
process.OutputDataReceived -= outputHandler;
process.ErrorDataReceived -= errorHandler;
}
}
}
if (woutput.OutputStream != null)
{
using (Stream fs = new FileStream(outputPdfFilePath, FileMode.Open))
{
byte[] buffer = new byte[32 * 1024];
int read;
while ((read = fs.Read(buffer, 0, buffer.Length)) > 0)
{
woutput.OutputStream.Write(buffer, 0, read);
}
}
}
if (woutput.OutputCallback != null)
{
byte[] pdfFileBytes = File.ReadAllBytes(outputPdfFilePath);
woutput.OutputCallback(document, pdfFileBytes);
}
}
finally
{
if (delete && File.Exists(outputPdfFilePath))
{
File.Delete(outputPdfFilePath);
}
}
}
public static void ConvertHtmlToPdfCustom(PdfDocument document, PdfConvertEnvironment environment, PdfOutput woutput)
{
if (environment == null)
{
environment = Environment;
}
if (document.Html != null)
{
document.Url = "-";
}
String outputPdfFilePath;
bool delete;
if (woutput.OutputFilePath != null)
{
outputPdfFilePath = woutput.OutputFilePath;
delete = false;
}
else
{
outputPdfFilePath = Path.Combine(environment.TempFolderPath, String.Format("{0}.pdf", Guid.NewGuid()));
delete = true;
}
if (!File.Exists(environment.WkHtmlToPdfPath))
{
throw new PdfConvertException(String.Format("File '{0}' not found. Check if wkhtmltopdf application is installed.", environment.WkHtmlToPdfPath));
}
StringBuilder paramsBuilder = new StringBuilder();
//if (String.IsNullOrEmpty(document.PaperType))
// document.PaperType = PaperTypes.A4;
//paramsBuilder.AppendFormat("--page-size {0} ", document.PaperType);
if (!string.IsNullOrEmpty(document.HeaderUrl))
{
paramsBuilder.AppendFormat("--header-html {0} ", document.HeaderUrl);
}
if (!string.IsNullOrEmpty(document.FooterUrl))
{
paramsBuilder.AppendFormat("--footer-html {0} ", document.FooterUrl);
}
if (!string.IsNullOrEmpty(document.JWTToken))
{
string cookieData = ".AspNetCore.Antiforgery.5uYu5VgZzcE=" + document.AntiForgeryToken
+ ";JWTToken=" + document.JWTToken
+ ";.AspNetCore.Cookies=" + document.CookiesToken;
paramsBuilder.AppendFormat("--custom-header Cookie \"{0}\" ", cookieData);
}
paramsBuilder.AppendFormat("--debug-javascript ");
paramsBuilder.AppendFormat("--no-custom-header-propagation ");
/*-B, --margin-bottom <unitreal> Set the page bottom margin
* -L, --margin-left <unitreal> Set the page left margin (default 10mm)
* -R, --margin-right <unitreal> Set the page right margin (default 10mm)
* -T, --margin-top <unitreal> */
if (document.ExtraParams != null)
{
foreach (var extraParam in document.ExtraParams)
{
paramsBuilder.AppendFormat("--{0} {1} ", extraParam.Key, extraParam.Value);
}
}
if (document.Cookies != null)
{
foreach (var cookie in document.Cookies)
{
paramsBuilder.AppendFormat("--cookie {0} {1} ", cookie.Key, cookie.Value);
}
}
paramsBuilder.AppendFormat("\"{0}\" \"{1}\"", document.Url, outputPdfFilePath);
try
{
StringBuilder output = new StringBuilder();
StringBuilder error = new StringBuilder();
using (Process process = new Process())
{
process.StartInfo.FileName = environment.WkHtmlToPdfPath;
process.StartInfo.Arguments = paramsBuilder.ToString();
process.StartInfo.UseShellExecute = false;
process.StartInfo.RedirectStandardOutput = true;
process.StartInfo.RedirectStandardError = true;
process.StartInfo.RedirectStandardInput = true;
using (AutoResetEvent outputWaitHandle = new AutoResetEvent(false))
using (AutoResetEvent errorWaitHandle = new AutoResetEvent(false))
{
DataReceivedEventHandler outputHandler = (sender, e) =>
{
if (e.Data == null)
{
outputWaitHandle.Set();
}
else
{
output.AppendLine(e.Data);
}
};
DataReceivedEventHandler errorHandler = (sender, e) =>
{
if (e.Data == null)
{
errorWaitHandle.Set();
}
else
{
error.AppendLine(e.Data);
}
};
process.OutputDataReceived += outputHandler;
process.ErrorDataReceived += errorHandler;
try
{
process.Start();
process.BeginOutputReadLine();
process.BeginErrorReadLine();
if (document.Html != null)
{
using (var stream = process.StandardInput)
{
byte[] buffer = Encoding.UTF8.GetBytes(document.Html);
stream.BaseStream.Write(buffer, 0, buffer.Length);
stream.WriteLine();
}
}
if (process.WaitForExit(environment.Timeout) && outputWaitHandle.WaitOne(environment.Timeout) && errorWaitHandle.WaitOne(environment.Timeout))
{
if (process.ExitCode != 0 && !File.Exists(outputPdfFilePath))
{
throw new PdfConvertException(String.Format("Html to PDF conversion of '{0}' failed. Wkhtmltopdf output: \r\n{1}", document.Url, error));
}
}
else
{
if (!process.HasExited)
{
process.Kill();
}
throw new PdfConvertTimeoutException();
}
}
finally
{
process.OutputDataReceived -= outputHandler;
process.ErrorDataReceived -= errorHandler;
}
}
}
if (woutput.OutputStream != null)
{
using (Stream fs = new FileStream(outputPdfFilePath, FileMode.Open))
{
byte[] buffer = new byte[32 * 1024];
int read;
while ((read = fs.Read(buffer, 0, buffer.Length)) > 0)
{
woutput.OutputStream.Write(buffer, 0, read);
}
}
}
if (woutput.OutputCallback != null)
{
byte[] pdfFileBytes = File.ReadAllBytes(outputPdfFilePath);
woutput.OutputCallback(document, pdfFileBytes);
}
}
finally
{
if (delete && File.Exists(outputPdfFilePath))
{
File.Delete(outputPdfFilePath);
}
}
}
