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Code Samples - Neevia PDFsign/encrypt

Example 2: Sign a PDF file with an invisible signature - ASP.NET

Copy the PDFsign .NET assembly from the c:\program files (x86)\neeviaPDF.com\PDFsign\dotNet\ folder into your web site bin folder;
Scroll down for the C# samples

Visual Basic Copy 

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  <%@ Page Language="VB" %>
  <HTML>
  <HEAD>
     <SCRIPT runat="server">
        Sub Button1_OnClick(Source As Object, e As EventArgs)
   	  Dim NVsign As new PDFsign.Neevia

	  NVsign.CertificateSubject = "Test certificate"
	  NVsign.CertificatePassword = "password"

	  NVsign.Reason = "I am the creator of this document"

	  NVsign.Invisible = true

	  Dim retVal
   	  retVal = NVsign.SignPDF("c:\in.pdf", "c:\out.pdf")
	  If retVal <> 0 Then
  	    Response.Write("Error code=" & CStr(retVal))
	  Else
	    Response.Write("Done")
	  End If
        End Sub
     </SCRIPT>
   </HEAD>
   <BODY><CENTER>
     <FORM id="Form1" enctype="multipart/form-data" method="post" runat="server">
     <INPUT id="Submit1" type="submit" value="Sign file" 
       OnServerClick="Button1_OnClick" name="Submit1" runat="server">
     </FORM>
   </BODY>
   </HTML>

VC# Copy 

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   <%@ Page Language="C#" %>
   <HTML>
   <HEAD>
   <SCRIPT runat="server">
      void Button1_OnClick(object Source, EventArgs e)
      {
	  PDFsign.Neevia NVsign = new PDFsign.Neevia();
	  int retVal;

	  NVsign.CertificateSubject = "Test certificate";
	  NVsign.CertificatePassword = "password";

	  NVsign.Reason = "I am the creator of this document";

	  NVsign.Invisible = true;

	  retVal = NVsign.SignPDF(@"c:\in.pdf",@"c:\out.pdf");
	  if (retVal != 0) {
	    Response.Write("Error code = " + retVal.ToString());
	  } else {
	    Response.Write("Done");
	  }

      }
   </SCRIPT>
   </HEAD>
   <BODY><CENTER>
   <FORM id="Form1" enctype="multipart/form-data" method="post" 
   runat="server">
   <INPUT id="Submit1" type="submit" value="Sign file"
   OnServerClick="Button1_OnClick" name="Submit1" runat="server">
   </FORM>
   </BODY>
   </HTML>