I try to use VFPCGI.EXE shipped with VFP 7 to return PDF files
to Web Server.

Unfortunately, it seems that VFPCGI does not return binary data correctly.
Adobe viewer displays message saying that PDF file is corrupted.

Any idea how to return PDF files using VFPCGI ?

I use the following code to create a file response file to VFPCGI:

strtofile( "Content-Type: application/pdf"+ CRLF+CRLF + ;
        filetostr( 'mypdf.pdf' ), m.lcDataFile )