How to add more than 240 page in a book in pdf Lr Classic

[Fred1971]

Hello,

I've imported a book from a old Lr (version 5.7) to my new one in Lr Classic.

This book is in pdf wtih 540 pages.

I want to do some modifications and add some page but I can't!

I' ve always this message : Limite de page atteinte. Le format de sortie actif limite le nombre de pages a 240. ( see on picture below)

I don't understand why I've got this message my book is in PDF and in PDF there is no page limit!

Could you help me?

Thank you

Fred

[cmgap]

You  can't override the page limit. You can combine in the pdf.

[Fred1971]

My book have 540pages. I can change the picutre on it but can add one more. If I open the book in my old version of Lr ver 5.7 I can add more page.

I've take a look in the help of Lr and It's written no page limit in pdf:

https://helpx.adobe.com/sea/lightroom-classic/help/create-photo-book.html

Automate the layout of books. Choose a preset and then click Auto Layout. To start over, click Clear Layout. If you are publishing to Blurb, auto-layout is limited to books of 240 pages. If you are publishing to PDF, there is no page limit.

Maybe ther is somthing to change in the preset?

Thanks

Fred