%\title{How to merge a PDF split in odd and even pages}
%%
%% Created by Nicola Rainiero
%% http://rainnic.altervista.org/it/tag/latex
%% ------------------------------------------
%%
%% Read me:
%% - Load your PDFs (Project --> files)
%% - the PDF that contains odd pages
%% - the PDF that contains even pages
%% - Change opportunely the size and the number of pages
%% - To discovering the correct size, you can use software like:
%% Inkscape, Gimp or a PDF Reader
%% - The default units are in mm but you can choose in whatever you want
%% - Specify if the even pages are reversed ("1") or not ("0")
%%
\documentclass[geometry]{minimal}
\usepackage{mathptmx}
\usepackage[12pt]{moresize}
\usepackage{comment}
\usepackage{ifthen}
\usepackage{pdfpages}
% <---------------------- EDIT THIS AREA ONLY ----------------------------->
%%
%% Define the file names and the dimension of your PDF
%% Put the size in mm
%% The typical size of an A4 document is 210x297 mm
%%
\newcommand\units{mm} % <--- set the units (default mm)
\newcommand\fileOdd{odd.pdf} % <--- the PDF that contains odd pages
\newcommand\fileEven{even_rev.pdf} % <--- the PDF that contains even pages
\newcommand\width{210} % <--- the width size in mm of your PDF
\newcommand\height{297} % <--- the height size in mm of your PDF
%%
%% Are reversed the even pages?
\newcommand\reversed{1} % <--- "1" YES, "0" NO
%%
%% How many pages do you want to process?
\newcommand\numberPages{3} % <--- the numbers of pages to process
%%
% <---------------------- EDIT THIS AREA ONLY ----------------------------->
%% The dimension of the PDF
\usepackage[paperwidth=\width \units,paperheight=\height \units]{geometry}
\newcounter{pg} %counter of pages
\begin{document}
%% Check if the PDFs exist
\IfFileExists{\fileOdd}
{\includecomment{checkTrue}}
{\excludecomment{checkTrue}
\begin{center}
\par \addvspace \bigskipamount \par
{\Huge LOAD THE PDF THAT CONTAINS THE ODD PAGES!}
\par \addvspace \bigskipamount \par
{\Huge Put the correct name and size in the edit area.
Correct the other options and enjoy!}
\par \addvspace \bigskipamount \par
\end{center}
}
\IfFileExists{\fileEven}
{\includecomment{checkTrue}}
{\excludecomment{checkTrue}
\begin{center}
\par \addvspace \bigskipamount \par
{\Huge LOAD THE PDF THAT CONTAINS THE EVEN PAGES!}
\par \addvspace \bigskipamount \par
{\Huge Put the correct name and size in the edit area.
Correct the other options and enjoy!}
\par \addvspace \bigskipamount \par
\end{center}
}
\begin{checkTrue}
% Save the PDF output
%% Check if the reversed mode is activated
\ifthenelse{\reversed=0}
{\setcounter{pg}{1} %fix the first page to start
\whiledo{\value{pg}<\the\numexpr\numberPages+1}{
{\includepdf[pages=\thepg]{\fileOdd}}
\def \lastPage{\the\numexpr\numberPages+1-\thepg}
{\includepdf[pages=\lastPage]{\fileEven}}
%page increment
\addtocounter{pg}{1}
}
}
{\setcounter{pg}{1} %fix the first page to start
\whiledo{\value{pg}<\the\numexpr\numberPages+1}{
{\includepdf[pages=\thepg]{\fileOdd}}
{\includepdf[pages=\thepg]{\fileEven}}
%page increment
\addtocounter{pg}{1}
}
}
\end{checkTrue}
\end{document}
