SO10 Text in PDF Form

Hello together,

I have created a SO10 as an include-text in a PDF Form.

The form contains only one page.

The issue is that when the SO10 text is too Long i get an error message and the form is not automatically Extended.

when the text is short the form is correctly  displayed.

I have set all the parameteres such as paging... see screenshot.

how can I Trigger the automatic Extension of the page if it'needed.

Any Ideas?

thanks a lot