[OilnH2o]

The warning I got was that there was "another file" with the same name. I had saved it earlier, I thought, in a folder, and then a version on my desktop for ease in handling. I think, thinking back, that it was really the same file, saved only in the one place. (And, I realize I shoulda renamed it...is there one of those smiley faces knocking its head against the wall on this forum??!!??)

What throws me, is that the file has a "graffle" extension, so I did not think it was the exported Adobe pdf file.

I've looked with the Finder pretty much everywhere, and even though the file has the graffle extension, it must be the one I "exported" as a pdf file... although it does not have a " . pdf" extension.