The pdfFactory dialog box has buttons on the bottom for its main functions

• View PDF - opens your default PDF viewer with the actual PDF file created. 
• Save - saves your PDF to a file.  Your file will also be auto-saved.
• Send - opens your default email client and attaches your PDF.  If you do not save your PDF manually with a file name of your choosing, a default file name is used.
• Combine documents - once the pdfFactory window opens, it will collect all print jobs from all your applications.  Just go back to your applications and print again and the print jobs will appear in order in PDF factory.  If you want to reorder the print jobs, you will need to use FinePrint.

Note that the preview within pdfFactory is an exact duplicate of what your PDF will look like, but it is not an actual PDF.  In almost all cases, there will be no difference between the display in pdfFactory and another PDF viewer.  Inserting or deleting pages from the preview will cause a new PDF file to be automatically generated in the background.