Export Book to PDF as one PDF, not two

[smart_Light5E43]

When I export book to PDF I get two PDFs, one of the cover and the other is the rest of the book. How do I get only one PDF of the entire book? 

[JohanElzenga]

I'm not sure if you can in Lightroom Classic, but there are lots of (free) utilities that can combine PDF files.

[Rob_Cullen]

You cannot in LrC. As @JohanElzenga suggests - use an app to combine two PDFs.

Or, maybe a silly suggestion- Something like this - Create your A) Front Cover and B) Back Cover in Photoshop and insert these images on A) Page 1 and B) last Page of the book design.  (Discard the cover PDF that is produced)

Use a 'Duplicate Saved Book Collection' if you don't want to change your original book design.

[smart_Light5E43]

Thank you. Since the cover PDF is both the front and back as a single image,
I decided to simply add 2 pages to the front and the back of the main book
and replicate the front and back cover images and text on those two pages.
This was done in the book module and worked out well.