No, the controls aren't in Access. They're in the HTML file. Access is simply hosting the HTML file in the web browser control.
I mean, maybe there's a way to use it programmatically by setting the text box values and activating the button. And if someone knows how to do that, then that would be great to hear.
Also, the tool allows for up to two PDFs to merge together. I need to merge about six. I mean, I guess I could do it multiple times, two files at a time.