# shrinking only the left margin

I'm working with a document class that has already set the left margin to 1.5in and right to 1in. I want to change both margins to 1in. I don't know how to alter the document class because I literally don't know where the .cls file is; it doesn't show up in finder (I remember having to do some kind of magic to get it to work when I first downloaded it). When I try \usepackage[margin=1in]{geometry} in my document, I get the error "the package geometry has already been loaded with options...". I noticed that I'm able to alter both margins simultaneously with

\addtolength{\oddsidemargin}{-.5in}


but obviously I only want to alter the left margin.

• What is the name of the class? – Bernard May 2 '17 at 22:57
• Its something someone at my school wrote to format the dissertation to conform to the requirements set by the adminstrators – Tim kinsella May 2 '17 at 23:03

Use the geometry package: much preferable.

\documentclass{article}

\usepackage[left=1in]{geometry}
\usepackage{lipsum}

\begin{document}
\lipsum
\end{document}

• I still get "the package geometry has ben loaded with options [] There has now been an attempt to load it with options [left=1in] Adding the global options:, left=1in to your \documentclass declaration may fix this." – Tim kinsella May 2 '17 at 23:02
• If geometry is loaded by the class, you may type in the preamble: \geometry{hmargin=1in}. – Bernard May 2 '17 at 23:16