Automator help is not much help!

I have scanned some drawings as separate pdf files (A4)> I selected them all>and control clicked> create workflow> automator opened> added combine pdf pages to workflow> clicked run > workflow execution complete

where would this new 7 page pdf file be and what name?

have I missed a action - like:  name new file xxxx, and place it on desktop.
Any suggestion appreciated.

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gary dorn
north perth