When you install the Windows 32 version of the PDF2IMG software, the PDF2IMG COM user interface is also provided.
You will see a C# application subfolder under the PDF2IMG directory. This folder will include the PDF2IMG COM modules, source code, and sample program files. You may alter the sample program source code to build your own applications.
When you run the PDF2IMG COM sample application it presents an Graphic User Interface that looks like this: