I'm automatically generating a PDF-file with Platypus that has dynamic content.

This means that it might happen that the length of the text content (which is directly at the bottom of the pdf-file) may vary.

However, it might happen that a page break is done in cases where the content is too long. This is because i use a "static" spacer:

s = Spacer(width=0, height=23.5*cm) 

as i always want to have only one page, I somehow need to dynamically set the height of the Spacer, so that it takes the "rest" of the space that is on the page as its height.

Now, how do i get the "rest" of height that is left on my page?