can defined width and height of page in pdf document?

Hello.
I have Project about printing pdf file

I have a question. We can defined width and height of page in pdf document?

help me…

thank you

How did you make the PDF?

NO

but I want defined page.height and page.width of pdf

thank you

With DynaPDFMBS we have methods like SetPageWidth and SetPageHeight.

This methods id read-only ?

This methods is read-only ?