Conversion of photobook is wrong in going from LR to pdf

[eagle480]

I used the Book Module in Lightroom Classic to prepare a photobook.  The book has several double-page spreads with one photo spreading over 2 pages. In LR the layout looks perfect, but in the pdf it comes out wrong.

The reason is that in LR page 1 is on the right, while in the pdf page 1 is on the left.  Thus, if -  in Lightroom - a double-page photo is on p2 (left) and 3 (right) it looks as intended.  However, in the pdf the photo will be on p2 (right) and p3 (left) and be cut in 2.

How can I prevent this in the pdf?

Since LR was designed to work with Blurb, will Blurb print the correct LR version or the incorrect pdf version?

[Rob_Cullen]

You cannot "prevent this in the pdf.".  Blurb (if you send a PDF) will 'see' each individual pdf 'page' and print them starting at Page 1 which will be on the Right (the first printable page in a book). So it will print as intended, double-page spreads included.

Anyway, for a Blurb book, the only reason to produce a PDF is to check the content of all pages. When you have chosen a 'Blurb Photo Book' in the Book Settings panel, a click on the button [Send to Blurb] will handle the pages as you designed. No need to 'save' or send a PDF.

If, for you own purposes, you want images of the book that keeps double-page spreads as one singular image, then you would need to set 'Book Settings' to "JPG" and then Export JPG files.