Here's an uncommon request. Let's say I have a page, page A. It's x in * y in. On another page, page B, I'd like to shrink the page to say half size (0.5 x in * 0.5 y in), to be used as a figure/illustration. I want them to be linked such that if I change the content of A, B prints with the same changes (meaning no copy-paste for B). See the following as an illustration (not produced from LaTeX, because I don't know how):
Note that the mini-page-A on page-B is not just an image, but will be compiled with all the content that's in page-A, and searchable and selectable.
Is there a way to store an entire page's content in a variable? Is it as simple as
\newcommand? Then how would I recall it later and shrink it down on page B?