If you need a ready to use tool for combing your documents and images you can use the command line utility. It allows you to specify the merge elements in any order with a simple syntax.

If you need to add PDF merge capabilities in your .NET application, either Windows Forms or ASP.NET, you can use the .NET library.

Main features:

• .NET PDF merge development libraries and samples
• Win32 PDF merge command line tool
• Merge PDF documents
• Merge images in any format with PDF files
• Merge text files with PDF files
• Merge HTML files with PDF files
• ASP.NET Support