I've just done a new install of Processing 3 on an iMac.
When I run the example sketch "oneFrame" that uses the PDF Export library, there is no file created (that I'm able to find using the Finder on Mac OS X). The same is true of DXF Export. I've looked for the libraries in the Processing folder, and using the find command – no luck finding them. Yet, no error is thrown when I run the sketch that begins by importing the pdf library.
Sorry if I'm making an obvious mistake, but I'd be grateful if someone could point it out to me.
Thanks.