Issue with opening PDF file from FilePro

[Boaz Bezborodko]

I'm running FP from Windows and I want to open a PDF file from within FP 
that was first generated by FP and then sent to Bob's PrintWizard to 
convert into a PDF.  The thing is that I can't figure out how to tell if 
the PDF file is ready from withing FP.

I don't want to use a long SLEEP command as some files are ready within 
a second or two.  But if I open the file too early then Adobe complains 
about the file being damaged.

Any suggestions?

Boaz