I've followed advice at "How to start new chapters on the right hand side" and found that including as title page, one PDF page is braking left&right orientation:
\documentclass[pdftex,a4paper,12pt,twoside,openright]{report}
\usepackage[pdftex,a4paper]{geometry}
\usepackage{pdfpages}
\usepackage{lipsum}
\begin{document}
\includepdf{onetitlepage.pdf} % <---- problem
\begin{abstract}
Abstract \lipsum[1]
\end{abstract}
\tableofcontents
\chapter{CH1}
\lipsum[2-6]
\chapter{CH2}
\lipsum[7-8]
\chapter{CH3}
\lipsum[9]
\end{document}
After including one page PDF, I get same document, but with one more page on beginning. It's all right except one thing: right pages are now left pages.
My current workaround is to include additional empty page, like that:
\includepdf{onetitlepage.pdf}
\includepdf{oneemptypage.pdf} % <---- current solution
Is is LaTeX-y way?
Can it be done in more elegant, LaTeX-y way?
What is the reason why including onepage.pdf breaks left&right hand side,
and how to prevent it when writing documents?
\includepdf[pages={1,{}}]{onetitlepage.pdf}(the{}creates a blank page) is enough - however, egreg's solution is the far better approach. – diabonas Feb 18 '12 at 14:33