Create, read, write Word and PDF in Classic ASP

GemBox.Document is a .NET library that enables you to process Word files from any .NET application. But it's also a COM accessible library that you can use in Classic ASP web pages as well.

System Requirements

To use GemBox.Document in VBScript, you'll need to:

  1. Download and install GemBox.Document Setup.
  2. Expose GemBox.Document to COM Interop with Regasm.exe tool:
    :: Add GemBox.Document to COM registry for x86 (32-bit) applications.
    C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe [path to installed GemBox.Document.dll]
    :: Add GemBox.Document to COM registry for x64 (64-bit) applications.
    C:\Windows\Microsoft.NET\Framework64\v4.0.30319\RegAsm.exe [path to installed GemBox.Document.dll]

Working with Word files in Classic ASP

The following example shows how you can read a template Word file from a Classic ASP application, edit its content (with Find and Replace, Mail Merge and Modify Bookmarks operations) and write it as an output file of PDF format.

Reading Word file and writing PDF file in Classic ASP
Screenshot of a PDF file created from updated Word template
  ' Create ComHelper object.
  Set comHelper = CreateObject("GemBox.Document.ComHelper")
  ' If using the Professional version, put your serial key below.
  ' Read Word document.
  Set document = comHelper.Load(Server.MapPath(".") & "\%#ComTemplate.docx%")
  ' Find and replace text.
  document.Content.Replace "PLACEHOLDER1", "Sample Value 1"
  document.Content.Replace "PLACEHOLDER2", "Sample Value 2"
  document.Content.Replace "PLACEHOLDER3", "Sample Value 3"
  ' Execute mail merge process.
  Set source = CreateObject("System.Collections.Hashtable")
  source.Add "Name", "John"
  source.Add "Surname", "Doe"
  source.Add "Age", 30
  ' Modify bookmarks content.
  document.Bookmarks.Item("Bookmark1").GetContent(True).LoadText("Sample Content 1.")
  document.Bookmarks.Item("Bookmark2").GetContent(True).LoadText("Sample Content 2.")
  ' Write document as PDF.
  document.Save(Server.MapPath(".") & "\ComExample.pdf")

Wrapper Library

Not all members of GemBox.Document are accessible because of the COM limitations like unsupported static and overload methods. That is why you can use the ComHelper class which provides alternatives for some members that cannot be called with COM Interop.

However, if you need to use many GemBox.Document members from VBScript, a recommended approach is to create a .NET wrapper library instead. Your wrapper library should do all the work within and exposes a minimal set of classes and methods to the unmanaged code.

This will enable you to take advantage of GemBox.Document's full capabilities, avoid any COM limitations, and improve performance by reducing the number of COM Callable Wrappers created at runtime.

See also

Next steps

GemBox.Document is a .NET component that enables you to read, write, edit, convert, and print document files from your .NET applications using one simple API. How about testing it today?

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