>>>How can I send a pdf to a particular windows printer?


Wayne,

ShellExecute does it. The only problem I see is that an acrobat window is left behind

FileName = '\tmp\test.pdf'
PrinterName = getprinter()

?ShellExecute(0, 'printto', FileName, '"'+PrinterName+'"', 0, 0)
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The Printto command looks something like

"C:\Program Files\Adobe\Acrobat 5.0\Reader\AcroRd32.exe" /t "%1" "%2" "%3" "%4"

&& %1 : FileName
&& %2 : PrinterName
&& %3 : PrinterDriver
&& %4 : PrinterPort

We're using the first two params

ps : enclose all parameters in double quotes

You can find the printto command with regedit
HKEY_CLASSES_ROOT\AcroExch.Document\shell\printto\command

and AcroExch.Document can be found in
HKEY_CLASSES_ROOT\.pdf in Default


And, of course, you can also change the windows printer, print, and reset the windows printer to its old value