Displaying multiple PDF's on screen

Hi,

I can create a single PDF. But when I try to combine multipe PDF creations, getting a 500 message.

The code below was being used to try display multiple PDF's on the screen:

<cfinclude template="module1pdf.cfm"> (the result is information in PDF)

<cfinclude template="module2pdf.cfm"> (the result is information in PDF)

Only the information from module1pdf.cfm would be displayed.

Per my research, I found the cfpdf.

Below is the cfpdf function:

<cfpdf

CenterWindowOnScreen overwrite="yes">

When the cfpdf is executed, receiving a 500 message.

Is the a way of displaying the creating of PDF's on the screen at the same time?

Note: Using Cold Fusion 9

Thanks,

Mike