Help with print/save in Preview

I have TONS of Boardmaker pages I need to change to PDF, one page at a time, that is how they want it here at work.

When I go to print, i click on preview, then from preview, i click on file/print

I make it 90%, (fits the page better)

Click the PDF button, save as PDF

Now, here is what I want to change:

It auto saves as [Preview of "whatever the file name is.bmd".pdf

I want it to just save it as the whatever the file name is.pdf I do not want the old extenstion, and I do not want the preview of. How does one change that default?

Thanks in advance