I downloaded the demo and tried playing with it but I always get this error when trying to run it:

Error Loading Printer Drivers

It happens in the report form to call. Below it the code I was using to test it. Does anyone have any ideas or a wrapper to handle the Amyuni program?

cRptName = "temp.frx"
cFileName = "U:\_ss\Temp.pdf"

m.cMyPrinter = 'Amyuni PDF Converter'

* This was provided by Jose of Amyuni on about Feb. 28, 2003. 
* Several things had to be done here for this
* to be called and work. We added the above parameters. 
DECLARE LONG PDFDriverInit IN cdintf210.DLL STRING
DECLARE LONG DriverInit IN cdintf210.DLL STRING
DECLARE DriverEnd IN cdintf210.DLL LONG
DECLARE LONG SetDefaultPrinter IN cdintf210.DLL LONG
DECLARE LONG EnablePrinter IN cdintf210.DLL LONG, STRING, STRING
DECLARE LONG SetDefaultFileName IN cdintf210.DLL LONG, STRING
DECLARE LONG SetFileNameOptions IN cdintf210.DLL LONG, LONG
DECLARE LONG SetDefaultConfig IN cdintf210.DLL LONG
DECLARE LONG SetWatermark IN CDIntf210.DLL LONG, STRING, STRING, LONG, LONG, LONG, LONG, LONG, LONG
DECLARE LONG SetBookmark IN CDIntf210.DLL LONG, LONG, STRING

#DEFINE NoPrompte             1      
#DEFINE UseFileName           2              
#DEFINE Concatenate           4
#DEFINE BroadcastMessages    32                         
* #DEFINE EnableWatermarks     64                     
#DEFINE EnableWatermarks     0                        
* Here is the definition of the watermark parameters
#DEFINE Wfontname          "Arial"
#DEFINE Wfontsize              70
#DEFINE Worientation          450
#DEFINE Wcolour               255
#DEFINE Whorzpos              200
#DEFINE Wvertpoz             -200
#DEFINE Wforeground           .T.

PDF = PDFDriverInit(m.cMyPrinter) && for the standard version


* Following is a special code -license from AmyUni and it is required 
* just like that. 
EnablePrinter (PDF,"MyCompanyName","- my secret id from amyuni goes here - ")

SetDefaultFileName ( PDF, cFileName )&& set output file name
SetFileNameOptions( PDF, NoPrompte+ UseFileName+ BroadcastMessages + EnableWatermarks) 

SET PRINTER TO NAME (m.cMyPrinter)  

REPORT FORM (cRptName) TO PRINTER NOCONSOLE && Error Happens Here

SetFileNameOptions ( PDF, 0 )	&& reset options

* Free the object -for the developer versions: remove 
* the PDF or HTML printer, otherwise only clears some memory
DriverEnd( PDF )