# Superimpose pages

I was wondering how to superimpose the content of two different pages.

The aim is to see that the lines and page dimensions of odd page is correctly and strictly aligned with the even one. How can this be done?

Assume you have a document containing your two-side document (I'll use lipsum50.pdf, since it contains 50 paragraphs of Lorem Ipsum style dummy text). Now create a stand-alone document with the following layout:

\documentclass{article}
\usepackage{eso-pic,graphicx}
\begin{document}

eso-pic provides the anchor \AtPageLowerLeft where you can place different pages from lipsum50.pdf and see how they overlay with one another.