I am using \documentclass{article} to formulate an a4paper in twoside mode; Every thing is fine ... Well nearly, there is a small glitch somewhere in the standard LaTeX defaults between the page numbering function and the margin setup.
Here is a simplified version of the problem, initial pages are numbered with {roman} numerals; The main bulk of the document is then enumerated with {arabic} numerals.
Between the roman and the arabic numerals; The margin weight for the double page spread is shifting from outer to inner, or vice versa; The problem arises if the format change is made on an even page as it resets the count to an odd number.
\documentclass[a4paper, twoside]{article}
\begin{document}
\pagenumbering{gobble}
\title{Jabberwocky}
\author{Lewis Carroll}
\date{1871}
\maketitle
\newpage
\pagenumbering{roman}
\tableofcontents
\setcounter{tocdepth}{1}
This is an unfathomably long line of relative yet diminutive sense, such that
the totality of the page is spread with ink.
\newpage
\pagenumbering{arabic}
\section{Twas brillig}
`Twas brillig, and the slithy toves
Did gyre and gimble in the wabe:
All mimsy were the borogoves,
And the mome raths outgrabe.
\section{Beware the Jabberwock}
"Beware the Jabberwock, my son!
The jaws that bite, the claws that catch!
Beware the Jubjub bird, and shun
The frumious Bandersnatch!"
\section{He took his vorpal sword}
He took his vorpal sword in hand:
Long time the manxome foe he sought --
So rested he by the Tumtum tree,
And stood awhile in thought.
\section{And, as in uffish}
And, as in uffish thought he stood,
The Jabberwock, with eyes of flame,
Came whiffling through the tulgey wood,
And burbled as it came!
\newpage
\section{One, two! One, two!}
One, two! One, two! And through and through
The vorpal blade went snicker-snack!
He left it dead, and with its head
He went galumphing back.
\section{And, has thou slain}
"And, has thou slain the Jabberwock?
Come to my arms, my beamish boy!
O frabjous day! Callooh! Callay!'
He chortled in his joy.
\section{Twas brillig}
`Twas brillig, and the slithy toves
Did gyre and gimble in the wabe;
All mimsy were the borogoves,
And the mome raths outgrabe.
\end{document}
And a screen shot of the pdf; Notice the difference in width of the juxtaposed margin between the title page and the content page i, and again between the content and page 1:


pagecounter; you have page “i” which is a right-hand page, followed by page “1”, which is again a right-hand page. You need\cleardoublepage(so as to create an empty page) when switching from Roman to Arabic numbers. – egreg Apr 26 '16 at 15:25pagenumbering{gobble}. Followed by an even number of roman numerated pages, and then the document starts. I think that using the\cleardoublepagewill cause a problem in the double side print; thank you for your consideration. – iain Apr 26 '16 at 15:37\pagenumbering{gobble}. But nobody prevents you from setting an even page number (say 0) in the title page. Margins should be adjusted only in the title page, but it's easier. – egreg Apr 26 '16 at 15:47\cleardoublepagehere, I will try this and also your suggestion for reseting the page number to 0 ... Hum, might be getting the picture now. – iain Apr 26 '16 at 15:57