Possible to cut 1 page in half and make two pages from it?

Hi,

I have a pdf book and I would like to cut each page in half, the first half being a page and the second half being created as another page. So it will exactly double the amount of pages in the book. Once each page is cut in half, each half it will stretch over an entire page thus increasing its viewing size. I would not mind if it was to cut words of images in half during this process.

The reason : I have a kindle and its horrible for reading pdfs as they are so small and the zoom on a kindle is not good. Thus I had this idea.

Does it exist?

Thanks,

Nathan