Hiding Processing Window in Adobe Acrobat Professional 9.0

Hi Everybody,

I have a Script, which converts some PDFs into EPS. Now I’d like to hide the Acrobat Application while it converts the PDF into the EPS. (the Process Window should not be visible) But I don’t how. Does somebody now?

Thank you very much

tell application "Adobe Acrobat Pro"
			open x with invisible
			delay 2
			save document 1 to file eps_file using EPS Conversion "com.adobe.acrobat.eps"
			close document 1 without saving
end tell

Thanks for your help!