Even-odd pages, inner edge 2.5cm, outer edge 1.5cm top and bottom 2cm. 1.5 spacing between the lines, double between paragraphs, no indent.
A general solution for other requirements would be best.
[Tex/LaTex] How to change the margins and spacing to fit the PhD thesis requirements of University XYZ
marginsthesis
Related Solutions
The reference point (unless changed with \hoffset and \voffset) is 1in in and 1in down from the top left of the page.
Relative to that point the left margin in LaTeX is \oddsidemargin on odd pages and \evensidemargin on even pages. The total paper width is \paperwidth so the right margin on an odd page is \paperwidth - \textwidth - \oddsidemargin - 1in.
If I print the document based on the code below on my printer to A4-paper (on Scientific Linux 6, Adobe Reader with the settings in the image below) I get a left margin of 3 cm, a top and bottom margin of 2.6 or 2.7 cm and a right margin of 2 cm.
I quickly measured with a cheap plastic ruler, so within an uncertainty of 2 mm I get the same as your requirements :)
It thus seems to be a printer problem on your side.
And - only as a snide remark - it might be good to try to pursue your school that these margins (and font settings) don't really make sense for a nice document. But that's completely unrelated to your problem.
\documentclass[12pt,a4paper,oneside]{article}
\usepackage{setspace}
\usepackage[ngerman]{babel}
\usepackage[utf8]{inputenc}
\usepackage{fancyhdr}
\usepackage{tabularx}
\renewcommand{\rmdefault}{phv}
\renewcommand{\sfdefault}{phv}
\usepackage[a4paper,left=3cm,right=2cm,top=2.5cm,bottom=2.5cm]{geometry}
\onehalfspacing
\usepackage{lipsum}
\begin{document}
\lipsum
\end{document}
Best Answer
For the margins use the
geometrypackage. For your particular example useCheck the documentation of this package for more details and other options!
For the line spacing use
setspace. Again for your example