3D FlipBook - I am using the Pro Version of your WordPress Plugin. I have a page which gets updated once a week with a new PDF – always

I am using the Pro Version of your WordPress Plugin. I have a page which gets updated once a week with a new PDF – always same layout and same page.

Is there a way just to exchange the PDF source without creating a new book each time? Once a book is saved, the upload button is not touchable again.

The rest of the page gets updated via custom fields and PHP coding. Thanks Wolfgang