(CORE) CORE (2022)

PDF creator COM-object based on TheArtOfDev.HtmlRenderer.PdfSharp

As base of code I take https://github.com/ArthurHub/HTML-Renderer, this is awesome project and I use it as base in number of my projects:


Full source code of this COM-object I have uploaded this project with test to Github https://github.com/Alex-1557/Html2PdfComObject.

This COM-object, of course, can working in any desktop application as ordinary assembly, not only on ancient ASP web-page.

This is a simplest way to perform my COM-object on ASP page.


   1:  <!DOCTYPE html>
   2:  <html>
   3:  <body>
   4:  <form name='TDS' method='post' ID="test1" action="/TSTPDF2.asp">
   5:  <a href="#">Test PDF component.</a> <br><br>
   6:  Html file<br>
   7:  <input type="text" name="html" style="width: 500px;" value="H:\TMP2\tst2.htm">
   8:   
   9:  <br>
  10:  <br>
  11:  <br>
  12:  <input type="submit" value="Create PDF">
  13:  </form>
  14:  <%
  15:  Const ForReading = 1
  16:  Const ForWriting = 2
  17:  Const ForAppending = 8
  18:   
  19:  If IsPostBack() then
  20:  Dim PdfCretor, FS, File 'as object 
  21:  Dim TmpDir, FileContent, GUID, TmpFileName 'as string
  22:   
  23:  Set FS = Server.CreateObject("Scripting.FileSystemObject")
  24:  Set File = FS.OpenTextFile(Request.Form("html"), ForReading)
  25:  FileContent = File.ReadAll
  26:  File.Close
  27:   
  28:  TmpDir = Server.MapPath("temp")
  29:  GUID = CreateGUID()
  30:  TmpFileName = TmpDir & "\" & GUID & ".pdf"
  31:   
  32:  Set PdfCretor = Server.CreateObject("TDS.HTML2PDF")
  33:  PdfCretor.CreatePdfFile2 TmpFileName, FileContent, 4,10
  34:   
  35:  Response.Redirect("/temp/" & GUID & ".pdf")
  36:   
  37:   
  38:  Set PdfCretor = nothing
  39:  Set FS = nothing
  40:  Set File = nothing
  41:  end if
  42:   
  43:  Function CreateGUID
  44:    Dim TypeLib
  45:    Set TypeLib = CreateObject("Scriptlet.TypeLib")
  46:    CreateGUID = Mid(TypeLib.Guid, 2, 36)
  47:  End Function
  48:   
  49:  Function IsPostBack()
  50:  If Request.ServerVariables("Request_Method") = "POST" Then
  51:     IsPostBack="True"
  52:  Else
  53:     IsPostBack="False"
  54:  End If
  55:  End Function
  56:   
  57:   
  58:  %>
  59:  </body>
  60:  </html>


In Github you can see TestProject how to use my COM-object as Type of Assembly and as COM-object.


   1:  Imports System.Net
   2:  Imports System.Security.Policy
   3:  Imports System.Text
   4:  Imports Microsoft.VisualStudio.TestTools.UnitTesting
   5:  Imports Microsoft.VisualStudio.TestTools.UnitTesting.Logging
   6:  Imports NLog
   7:  Imports PdfSharp
   8:  Imports PdfSharp.Drawing
   9:  Imports TDSprint2
  10:  Imports TheArtOfDev.HtmlRenderer.Adapters
  11:  Imports TheArtOfDev.HtmlRenderer.Core
  12:  Imports TheArtOfDev.HtmlRenderer.PdfSharp
  13:  'Imports PageSize = PdfSharp.PageSize
  14:  Imports PageSize = TDSprint2.PageSize
  15:   
  16:  <TestClass()> Public Class UnitTest1
  17:      Friend Request As MyWebClient
  18:      Friend Shared Log As NLog.Logger = LogManager.GetCurrentClassLogger()
  19:   
  20:      <TestInitialize>
  21:      Public Sub Start()
  22:          Request = New MyWebClient
  23:      End Sub
  24:   
  25:   
  26:      <TestMethod()>
  27:      <DataRow("H:\TMP2\tst2.htm")>
  28:      Public Sub TestClass(FileName As String)
  29:          Try
  30:              Dim Response As String = IO.File.ReadAllText(FileName)
  31:              Dim TmpDir As String = System.IO.Path.GetTempPath
  32:              Dim TmpFile As String = IO.Path.Combine(TmpDir, Replace(FileName, ".htm", ".pdf"))
  33:              Dim X As New Html2Pdf
  34:              Dim Config As New TheArtOfDev.HtmlRenderer.PdfSharp.PdfGenerateConfig With {
  35:                      .MarginBottom = 10,
  36:                      .MarginLeft = 10,
  37:                      .MarginRight = 10,
  38:                      .MarginTop = 10,
  39:                      .PageOrientation = 0,
  40:                      .PageSize = 4
  41:              }
  42:              Dim Css As CssData = X.ParseStyleSheet("", True)
  43:              X.CreatePdfFile3(TmpFile, Response, 4, 10, Css)
  44:              Dim Ret2 = Process.Start("C:\Program Files\Mozilla Firefox\firefox.exe", TmpFile)
  45:          Catch ex As WebException
  46:              Dim Resp As String = ""
  47:              Dim Stream = ex.Response?.GetResponseStream()
  48:              If Stream IsNot Nothing Then
  49:                  Dim Sr = New IO.StreamReader(Stream)
  50:                  Resp = Sr.ReadToEnd
  51:              End If
  52:              Log.Info(Resp & vbCrLf & ex.Message)
  53:          End Try
  54:      End Sub
  55:   
  56:      <DataRow("H:\TMP2\tst2.htm")>
  57:      <TestMethod()>
  58:      Public Sub TestCOM(FileName As String)
  59:          Try
  60:              Dim Response As String = IO.File.ReadAllText(FileName)
  61:              Dim TmpDir As String = System.IO.Path.GetTempPath
  62:              Dim TmpFile As String = IO.Path.Combine(TmpDir, Replace(FileName, ".htm", ".pdf"))
  63:              '
  64:              Dim Config As New TheArtOfDev.HtmlRenderer.PdfSharp.PdfGenerateConfig With {
  65:                      .MarginBottom = 10,
  66:                      .MarginLeft = 10,
  67:                      .MarginRight = 10,
  68:                      .MarginTop = 10,
  69:                      .PageOrientation = 0,
  70:                      .PageSize = 4
  71:              }
  72:              Dim ComObjType = Type.GetTypeFromProgID("TDS.Html2Pdf")
  73:              Dim X As IHtml2Pdf = Activator.CreateInstance(ComObjType)
  74:              X.CreatePdfFile2(TmpFile, Response, 4, 10)
  75:              Dim Ret2 = Process.Start("C:\Program Files\Mozilla Firefox\firefox.exe", TmpFile)
  76:          Catch ex As WebException
  77:              Dim Resp As String = ""
  78:              Dim Stream = ex.Response?.GetResponseStream()
  79:              If Stream IsNot Nothing Then
  80:                  Dim Sr = New IO.StreamReader(Stream)
  81:                  Resp = Sr.ReadToEnd
  82:              End If
  83:              Log.Info(Resp & vbCrLf & ex.Message)
  84:          End Try
  85:      End Sub
  86:   
  87:  End Class

About deploying this COM-object to server you can read in page How to create and testing COM-object of ancient ASP web-sites - list of tools and description of all workflow..



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