/// <summary>
/// Publishes a generic letter on School letterhead. PDF protection options are set via the boolean properties of this object.
/// Document is digitally signed using a certificate generated by the local certificate authority in the dublinschool.org domain.
/// </summary>
/// <param name="bodyHtml">Body of the letter.</param>
/// <param name="signerId">Employee id of the Faculty who will put their signature on the document. (automatically adds the signature image to the end of the document.</param>
public Document PublishGenericLetter(String bodyHtml, bool digitallySign = false, int signerId = -1)
{
String html = Template.Replace("{content}", bodyHtml).Replace("{signature}", signerId == -1? "" : SignatureImage(signerId));
Document document = PdfConverter.ConvertHtmlToPdfDocumentObject(html, BaseURL, BaseURL);
if (digitallySign)
{
try
{
/// digitally sign the document.
HtmlElementMapping dsMap = PdfConverter.HtmlElementsMappingOptions.HtmlElementsMappingResult.GetElementByMappingId("digital_signature_element");
if (dsMap != null)
{
PdfPage page = dsMap.PdfRectangles.Last().PdfPage;
RectangleF rectangle = dsMap.PdfRectangles.Last().Rectangle;
DigitalCertificate cert = DocumentSigningCertificate;
DigitalSignatureElement dse = new DigitalSignatureElement(rectangle, cert);
dse.Reason = "Ensure Document Integrity and Protect from unwanted changes.";
dse.ContactInfo = "Contact Email: [email protected]";
dse.Location = "Issuing Web Server";
page.AddElement(dse);
}
}
catch (Exception e)
{
//WebhostEventLog.CommentLog.LogError("Failed to Apply digital signature to document...{0}{1}", Environment.NewLine, e.Message);
}
}
return(document);
}
protected void convertToPdfButton_Click(object sender, EventArgs e)
{
// Get the server IP and port
String serverIP = textBoxServerIP.Text;
uint serverPort = uint.Parse(textBoxServerPort.Text);
// Create a PDF document
Document pdfDocument = new Document(serverIP, serverPort);
// Set optional service password
if (textBoxServicePassword.Text.Length > 0)
{
pdfDocument.ServicePassword = textBoxServicePassword.Text;
}
// Set license key received after purchase to use the converter in licensed mode
// Leave it not set to use the converter in demo mode
pdfDocument.LicenseKey = "4W9+bn19bn5ue2B+bn1/YH98YHd3d3c=";
// Add a page to PDF document
PdfPage pdfPage = pdfDocument.AddPage();
string htmlWithDigitalSignatureMarker = htmlStringTextBox.Text;
string baseUrl = baseUrlTextBox.Text;
// Add a HTML string with a marker for digital signature to PDF document
HtmlToPdfElement htmlToPdfElement = new HtmlToPdfElement(htmlWithDigitalSignatureMarker, baseUrl);
pdfPage.AddElement(htmlToPdfElement);
string certificateFilePath = Server.MapPath(@"~/DemoAppFiles/Input/Certificates/evopdf.pfx");
// Create the digital signature
DigitalSignatureElement signature = new DigitalSignatureElement(certificateFilePath, "evopdf", 0);
signature.Reason = "Protect the document from unwanted changes";
signature.ContactInfo = "The contact email is [email protected]";
signature.Location = "Development server";
pdfDocument.AddElement(signature);
// Save the PDF document in a memory buffer
byte[] outPdfBuffer = pdfDocument.Save();
// Send the PDF as response to browser
// Set response content type
Response.AddHeader("Content-Type", "application/pdf");
// Instruct the browser to open the PDF file as an attachment or inline
Response.AddHeader("Content-Disposition", String.Format("attachment; filename=Digital_Signatures.pdf; size={0}", outPdfBuffer.Length.ToString()));
// Write the PDF document buffer to HTTP response
Response.BinaryWrite(outPdfBuffer);
// End the HTTP response and stop the current page processing
Response.End();
}
public ActionResult CreatePdf(IFormCollection collection)
{
// Create a PDF document
Document pdfDocument = new Document();
// Set license key received after purchase to use the converter in licensed mode
// Leave it not set to use the converter in demo mode
pdfDocument.LicenseKey = "4W9+bn19bn5ue2B+bn1/YH98YHd3d3c=";
// Add a page to PDF document
PdfPage pdfPage = pdfDocument.AddPage();
try
{
string htmlWithDigitalSignatureMarker = collection["htmlStringTextBox"];
string baseUrl = collection["baseUrlTextBox"];
// Add a HTML string with a marker for digital signature to PDF document
HtmlToPdfElement htmlToPdfElement = new HtmlToPdfElement(htmlWithDigitalSignatureMarker, baseUrl);
pdfPage.AddElement(htmlToPdfElement);
// Make the HTML element with 'digital_signature_element' mapping ID a link to digital signature properties
HtmlElementMapping digitalSignatureMapping = htmlToPdfElement.HtmlElementsMappingOptions.HtmlElementsMappingResult.GetElementByMappingId("digital_signature_element");
if (digitalSignatureMapping != null)
{
PdfPage digitalSignaturePage = digitalSignatureMapping.PdfRectangles[0].PdfPage;
RectangleF digitalSignatureRectangle = digitalSignatureMapping.PdfRectangles[0].Rectangle;
string certificateFilePath = m_hostingEnvironment.ContentRootPath + "/wwwroot" + "/DemoAppFiles/Input/Certificates/evopdf.pfx";
// Get the certificate from password protected PFX file
DigitalCertificatesCollection certificates = DigitalCertificatesStore.GetCertificates(certificateFilePath, "evopdf");
DigitalCertificate certificate = certificates[0];
// Create the digital signature
DigitalSignatureElement signature = new DigitalSignatureElement(digitalSignatureRectangle, certificate);
signature.Reason = "Protect the document from unwanted changes";
signature.ContactInfo = "The contact email is [email protected]";
signature.Location = "Development server";
digitalSignaturePage.AddElement(signature);
}
// Save the PDF document in a memory buffer
byte[] outPdfBuffer = pdfDocument.Save();
// Send the PDF file to browser
FileResult fileResult = new FileContentResult(outPdfBuffer, "application/pdf");
fileResult.FileDownloadName = "Digital_Signatures.pdf";
return(fileResult);
}
finally
{
// Close the PDF document
pdfDocument.Close();
}
}
private void btnCreatePdf_Click(object sender, EventArgs e)
{
// create a PDF document
Document document = new Document();
// set the license key
document.LicenseKey = "B4mYiJubiJiInIaYiJuZhpmahpGRkZE=";
// add a page to the PDF document
PdfPage firstPage = document.AddPage();
string logoImagePath = System.IO.Path.Combine(Application.StartupPath, @"..\..\img\evologo-250.png");
string certificateFilePath = System.IO.Path.Combine(Application.StartupPath, @"..\..\certificates\evopdf.pfx");
PdfFont pdfFont = document.Fonts.Add(new Font("Arial", 10, FontStyle.Regular, GraphicsUnit.Point));
TextElement descriptionTextElement = new TextElement(0, 0,
"A digital signature was applied on the logo image below. Click on the image to see the signature details", pdfFont);
AddElementResult addResult = firstPage.AddElement(descriptionTextElement);
// create the area where the digital signature will be displayed in the PDF document
// in this sample the area is a logo image but it could be anything else
ImageElement logoElement = new ImageElement(0, addResult.EndPageBounds.Bottom + 10, 100, logoImagePath);
addResult = firstPage.AddElement(logoElement);
//get the #PKCS 12 certificate from file
DigitalCertificatesCollection certificates = DigitalCertificatesStore.GetCertificates(certificateFilePath, "evopdf");
DigitalCertificate certificate = certificates[0];
// create the digital signature over the logo image element
DigitalSignatureElement signature = new DigitalSignatureElement(addResult.EndPageBounds, certificate);
signature.Reason = "Protect the document from unwanted changes";
signature.ContactInfo = "The contact email is [email protected]";
signature.Location = "Development server";
firstPage.AddElement(signature);
string outFilePath = System.IO.Path.Combine(Application.StartupPath, "DigitalSignature.pdf");
// save the PDF document to disk
document.Save(outFilePath);
// close the PDF document to release the resources
document.Close();
DialogResult dr = MessageBox.Show("Open the saved file in an external viewer?", "Open Rendered File", MessageBoxButtons.YesNo);
if (dr == DialogResult.Yes)
{
try
{
System.Diagnostics.Process.Start(outFilePath);
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
return;
}
}
}
protected void convertToPdfButton_Click(object sender, EventArgs e)
{
// Create a PDF document
Document pdfDocument = new Document();
// Set license key received after purchase to use the converter in licensed mode
// Leave it not set to use the converter in demo mode
pdfDocument.LicenseKey = "4W9+bn19bn5ue2B+bn1/YH98YHd3d3c=";
// Add a page to PDF document
PdfPage pdfPage = pdfDocument.AddPage();
try
{
string htmlWithDigitalSignatureMarker = htmlStringTextBox.Text;
string baseUrl = baseUrlTextBox.Text;
// Add a HTML string with a marker for digital signature to PDF document
HtmlToPdfElement htmlToPdfElement = new HtmlToPdfElement(htmlWithDigitalSignatureMarker, baseUrl);
pdfPage.AddElement(htmlToPdfElement);
// Make the HTML element with 'digital_signature_element' mapping ID a link to digital signature properties
HtmlElementMapping digitalSignatureMapping = htmlToPdfElement.HtmlElementsMappingOptions.HtmlElementsMappingResult.GetElementByMappingId("digital_signature_element");
if (digitalSignatureMapping != null)
{
PdfPage digitalSignaturePage = digitalSignatureMapping.PdfRectangles[0].PdfPage;
RectangleF digitalSignatureRectangle = digitalSignatureMapping.PdfRectangles[0].Rectangle;
string certificateFilePath = Server.MapPath(@"~/DemoAppFiles/Input/Certificates/evopdf.pfx");
// Get the certificate from password protected PFX file
DigitalCertificatesCollection certificates = DigitalCertificatesStore.GetCertificates(certificateFilePath, "evopdf");
DigitalCertificate certificate = certificates[0];
// Create the digital signature
DigitalSignatureElement signature = new DigitalSignatureElement(digitalSignatureRectangle, certificate);
signature.Reason = "Protect the document from unwanted changes";
signature.ContactInfo = "The contact email is [email protected]";
signature.Location = "Development server";
digitalSignaturePage.AddElement(signature);
}
// Save the PDF document in a memory buffer
byte[] outPdfBuffer = pdfDocument.Save();
// Send the PDF as response to browser
// Set response content type
Response.AddHeader("Content-Type", "application/pdf");
// Instruct the browser to open the PDF file as an attachment or inline
Response.AddHeader("Content-Disposition", String.Format("attachment; filename=Digital_Signatures.pdf; size={0}", outPdfBuffer.Length.ToString()));
// Write the PDF document buffer to HTTP response
Response.BinaryWrite(outPdfBuffer);
// End the HTTP response and stop the current page processing
Response.End();
}
finally
{
// Close the PDF document
pdfDocument.Close();
}
}
public ActionResult ConvertHtmlToPdf(IFormCollection collection)
{
// Create a HTML to PDF converter object with default settings
HtmlToPdfConverter htmlToPdfConverter = new HtmlToPdfConverter();
// Set license key received after purchase to use the converter in licensed mode
// Leave it not set to use the converter in demo mode
htmlToPdfConverter.LicenseKey = "4W9+bn19bn5ue2B+bn1/YH98YHd3d3c=";
// Set an adddional delay in seconds to wait for JavaScript or AJAX calls after page load completed
// Set this property to 0 if you don't need to wait for such asynchcronous operations to finish
htmlToPdfConverter.ConversionDelay = 2;
Document pdfDocument = null;
try
{
string htmlWithDigitalSignatureMarker = collection["htmlStringTextBox"];
string baseUrl = collection["baseUrlTextBox"];
// Convert a HTML string with a marker for digital signature to a PDF document object
pdfDocument = htmlToPdfConverter.ConvertHtmlToPdfDocumentObject(htmlWithDigitalSignatureMarker, baseUrl);
// Make the HTML element with 'digital_signature_element' mapping ID a link to digital signature properties
HtmlElementMapping digitalSignatureMapping = htmlToPdfConverter.HtmlElementsMappingOptions.HtmlElementsMappingResult.GetElementByMappingId("digital_signature_element");
if (digitalSignatureMapping != null)
{
PdfPage digitalSignaturePage = digitalSignatureMapping.PdfRectangles[0].PdfPage;
RectangleF digitalSignatureRectangle = digitalSignatureMapping.PdfRectangles[0].Rectangle;
string certificateFilePath = m_hostingEnvironment.ContentRootPath + "/wwwroot" + "/DemoAppFiles/Input/Certificates/evopdf.pfx";
// Get the certificate from password protected PFX file
DigitalCertificatesCollection certificates = DigitalCertificatesStore.GetCertificates(certificateFilePath, "evopdf");
DigitalCertificate certificate = certificates[0];
// Create the digital signature
DigitalSignatureElement signature = new DigitalSignatureElement(digitalSignatureRectangle, certificate);
signature.Reason = "Protect the document from unwanted changes";
signature.ContactInfo = "The contact email is [email protected]";
signature.Location = "Development server";
digitalSignaturePage.AddElement(signature);
}
// Save the PDF document in a memory buffer
byte[] outPdfBuffer = pdfDocument.Save();
// Send the PDF file to browser
FileResult fileResult = new FileContentResult(outPdfBuffer, "application/pdf");
fileResult.FileDownloadName = "Digital_Signatures.pdf";
return(fileResult);
}
finally
{
// Close the PDF document
if (pdfDocument != null)
{
pdfDocument.Close();
}
}
}
protected void convertToPdfButton_Click(object sender, EventArgs e)
{
// Get the server IP and port
String serverIP = textBoxServerIP.Text;
uint serverPort = uint.Parse(textBoxServerPort.Text);
// Create a HTML to PDF converter object with default settings
HtmlToPdfConverter htmlToPdfConverter = new HtmlToPdfConverter(serverIP, serverPort);
// Set optional service password
if (textBoxServicePassword.Text.Length > 0)
{
htmlToPdfConverter.ServicePassword = textBoxServicePassword.Text;
}
// Set license key received after purchase to use the converter in licensed mode
// Leave it not set to use the converter in demo mode
htmlToPdfConverter.LicenseKey = "4W9+bn19bn5ue2B+bn1/YH98YHd3d3c=";
// Set an adddional delay in seconds to wait for JavaScript or AJAX calls after page load completed
// Set this property to 0 if you don't need to wait for such asynchcronous operations to finish
htmlToPdfConverter.ConversionDelay = 2;
string htmlWithDigitalSignatureMarker = htmlStringTextBox.Text;
string baseUrl = baseUrlTextBox.Text;
// Convert a HTML string with a marker for digital signature to a PDF document object
Document pdfDocument = htmlToPdfConverter.ConvertHtmlToPdfDocumentObject(htmlWithDigitalSignatureMarker, baseUrl);
// Make the HTML element with 'digital_signature_element' mapping ID a link to digital signature properties
HtmlElementMapping digitalSignatureMapping = htmlToPdfConverter.HtmlElementsMappingOptions.HtmlElementsMappingResult.GetElementByMappingId("digital_signature_element");
if (digitalSignatureMapping != null)
{
PdfPage digitalSignaturePage = pdfDocument.GetPage(digitalSignatureMapping.PdfRectangles[0].PageIndex);
RectangleFloat digitalSignatureRectangle = digitalSignatureMapping.PdfRectangles[0].Rectangle;
string certificateFilePath = Server.MapPath("~/DemoAppFiles/Input/Certificates/evopdf.pfx");
// Create the digital signature
DigitalSignatureElement signature = new DigitalSignatureElement(digitalSignatureRectangle, certificateFilePath, "evopdf", 0);
signature.Reason = "Protect the document from unwanted changes";
signature.ContactInfo = "The contact email is [email protected]";
signature.Location = "Development server";
digitalSignaturePage.AddElement(signature);
}
// Save the PDF document in a memory buffer
byte[] outPdfBuffer = pdfDocument.Save();
// Send the PDF as response to browser
// Set response content type
Response.AddHeader("Content-Type", "application/pdf");
// Instruct the browser to open the PDF file as an attachment or inline
Response.AddHeader("Content-Disposition", String.Format("attachment; filename=Digital_Signatures.pdf; size={0}", outPdfBuffer.Length.ToString()));
// Write the PDF document buffer to HTTP response
Response.BinaryWrite(outPdfBuffer);
// End the HTTP response and stop the current page processing
Response.End();
}
