I think PDF Creator is a fine program. The latest version (maybe 1.3.2) has a bug when setting up auto-save. I selected the auto-save and to save the file and it did not honor the request.
That has been working for many years. The program is great, but I depend on the to create an email attachment and it is no longer working.
We also have the version 1.1.0 or some such that works like a champ, so I regressed to that.